夸克网盘
5积分
初中小四门物理化学，整理了一波，暑假可以让孩子看看哦30.68GB
看动画学初中地理21.21GB
第一套3.15GB
01.地球和地图396.76MB
01.地球的形状和大小.mp438.08MB02.纬线和纬度.mp440.09MB03.经线和经度.mp446.81MB04.利用经纬网定位.mp433.7MB05.地球的自转特征.mp411.32MB06.地球自转的意义.mp413.12MB07.地球公转产生的现象.mp423.5MB08.地球公转的基本特征.mp417.23MB09.太阳.mp420.85MB10.月球.mp420.18MB11.区时的换算.mp48.97MB12.日食和月食.mp418.5MB13.月相.mp412.9MB14.八大行星.mp427.6MB15.卫星、彗星、小行星.mp423.08MB16.星座.mp416.21MB17.宇宙的结构层次.mp424.63MB02.中国邻近的地区和国家796.01MB
01.雄踞东方的大洲.mp448.42MB02.世界第一大洲.mp439.11MB03.地势与河流.mp449.01MB04.亚洲复杂多样的气候.mp446.32MB05.一衣带水、多山地丘陵的岛国.mp454.02MB06.日本气候灾害和自然资源.mp420.4MB07.日本与世界联系密切的日本.mp471.3MB08.日本东西方兼容的文化.mp422.49MB09.东南亚“十字路口”的位置.mp432.6MB10.东南亚热带气候与农业生产.mp437.51MB11.东南亚山河相间与城市分布.mp448.29MB12.东南亚热带旅游胜地.mp474.8MB13.世界第二人口大国.mp444.94MB14.印度迅速发展的服务外包产业.mp438.2MB15.俄罗斯横跨亚欧大陆北部.mp431.43MB16.俄罗斯自然资源与工业.mp438.24MB17.俄罗斯交通与城市.mp440.82MB19.欧洲的地理特征.mp458.12MB03.东半球其他地区和国家326.01MB
01.“三洲五海之地”.mp425.72MB02.世界是石油宝库.mp434.5MB03.欧洲西部工业与国家.mp441.54MB04.欧洲西部发达的畜牧业.mp447.88MB06.撒哈拉以南非洲黑种人的故乡.mp453.47MB07.世界活化石博物馆.mp445.44MB08.“骑在羊背上的国家”.mp445.38MB09.“坐在矿车上的国家”.mp432.08MB04.西半球的国家323.11MB
01.美国民族大熔炉.mp417.18MB02.美国农业地区专业化.mp450.64MB03.世界最发达的工业国家.mp428.54MB04.巴西大量混血种人的社会.mp428.74MB05.巴西发展中的工农业.mp436.5MB06.巴西热带雨林的开发和保护.mp446.18MB07.独特的自然环境.mp427.83MB08.科学考察的宝地.mp444.92MB09.极地地区的环境保护.mp442.57MB05.从世界看中国132.23MB
01.优越的地理位置.mp449.11MB02.海陆兼备的大国.mp467.32MB03.人口东多西少.mp415.8MB06.中国的自然环境144.91MB
01.地形类型多样,山区面积广大.mp459.78MB03.长江的开发与治理.mp438.08MB05.地理差异显著.mp415.04MB06.秦岭淮河.mp414.65MB07.四大地理区域.mp417.36MB07.北方地区285.01MB
01.黑土地、黄土地.mp415.03MB02.重要的旱作农业区.mp414.07MB03.山环水绕 沃野千里.mp415.72MB04.从“北大荒”到“北大仓”.mp425.55MB05.我国最大的重工业基地.mp418.23MB06.文明的摇篮.mp424.77MB07.风吹来的黄土.mp429.74MB08.严重的水土流失.mp420.19MB09.水土保持.mp442.89MB10.北京-政治文化中心.mp420.83MB11.历史悠久的古城.mp423.62MB12.现代化的大都市.mp434.38MB08.南方地区349.61MB
01.气候湿热的红土地.mp421.76MB02.重要的水田农业区.mp423.84MB03.江海交汇之地.mp424.1MB04.中国最大的城市群.mp421.12MB05.水乡文化特色与旅游.mp427.96MB06.长株潭城市群的发展差异.mp433.45MB07.贵州.mp420.14MB08.特别行政区.mp425.71MB09.港澳与祖国内地的密切联系.mp423.94MB10.不可分割的神圣领土.mp419.9MB11.美丽富饶的宝岛.mp481.48MB12.外向型经济.mp426.21MB09.西北地区209.06MB
01.草原和荒漠.mp445.75MB02.牧区和灌溉农业区.mp495.18MB03.沙漠和戈壁广布.mp426.61MB04.油气资源的开发.mp441.52MB10.青藏地区102.64MB
01.青藏地区的自然环境.mp420.37MB02.高寒牧区和河谷农业区.mp425.12MB03.江河的源地.mp416.06MB04.三江源地区的保护.mp421.78MB05.新疆.mp419.3MB11.中国在世界中161.39MB
01.中国发展成就.mp431.22MB02.发展中面临的挑战.mp456.57MB03.做负责任的大国.mp473.6MB第二套2.65GB
地.初1.上（7课）772.95MB
1课《多变的天气》.mp4114.2MB1课《地球和地球仪》.mp4116.17MB1课《大洲和大洋》.mp4115.19MB2课《海陆的变迁》.mp499.49MB2课《气温的变化与分布》.mp4116.12MB3课《降水的变化与分布》.mp4100.19MB4课《世界的气候》.mp4111.61MB地.初1.下（5课）579.35MB
1课《亚洲的位置和范围》.mp4118.67MB2课1节《东南亚》（上）.mp4115.62MB2课2节《东南亚》（下）.mp4112.45MB2课《亚洲的自然环境》.mp4118.95MB3课2节《印度》.mp4113.66MB地.初2（12课）1.32GB
1课《南方地区的自然特征与农业》.mp4120.99MB1课《中国的地理差异》.mp4119.24MB01上册1课《地形和地势》.mp497.61MB2课《长江三角洲地区》.mp4120.78MB02上册1课《疆域》.mp4112.39MB03上册2课《气候》.mp4105.31MB04上册3课《河流》.mp4137.44MB05上册4课《自然灾害》.mp4124.85MB06上册1课《自然资源的基本特征》.mp496.44MB07上册2课《土地资源》.mp4101.13MB8课1节《西北地区的自然特征与农业》.mp4105.67MB08上册3课《水资源》.mp4114.75MB第三套15.41GB
初二地理上学期3.27GB
01 疆域(1).mp4151.14MB02 疆域(2).mp4153.68MB03 疆域(3).mp4436.28MB04 人口.mp4118.27MB05 民族.mp4137.79MB06 地形和地势.mp4376.14MB07 气候.mp4233.85MB08 河流.mp4361.38MB09 自然灾害.mp4296.86MB10 自然资源.mp4158.23MB11 土地资源.mp4155.85MB12 水资源.mp4204.43MB13 交通运输.mp4161.3MB14 农业.mp4258.19MB15 工业.mp4147.55MB初二地理下学期3.96GB
01 中国的地理差异.mp4364.46MB02 白山黑水--东北三省.mp4383.57MB03 北方地区的自然特征与农业.mp4367.81MB04 世界最大的黄土堆积区--黄土高原.mp4213.45MB05 祖国的首都--北京.mp4188.6MB06 南方地区自然特征与农业.mp4246.72MB07 鱼米之乡--长江三角洲地区.mp4336.59MB08 东方明珠--香港和澳门.mp4240.01MB09 祖国的神圣领土--台湾.mp4474.81MB10 西北地区自然特征与农业.mp4341.46MB11 干旱的宝地--塔里木盆地.mp4228.64MB12 青藏地区自然特征与农业.mp4381.16MB13 高原湿地--三江源地区.mp4188.31MB14 中国在世界中.mp495.83MB初一地理上学期5.01GB
01 地球和地球仪.mp4238.47MB02 地球和地球仪(经纬).mp4664.14MB03 地球的运动(自转).mp4137.13MB04 地球的运动(公转).mp4497.3MB05 地图的阅读.mp4147.15MB06 地形图的判断.mp4487.62MB07 大洲和大洋.mp4407.64MB08 海陆的变迁.mp4466.42MB09 多变的天气.mp4118.32MB10 气温的变化与分布.mp4440.35MB11 降水的变化与分布.mp4295.88MB12 世界的气候(气候类型).mp4633.9MB13 人口与人种.mp4116.84MB14 世界的语言和宗教.mp4103.7MB15 聚落.mp4274.9MB16 世界的发展差异.mp497.77MB初一地理下学期3.17GB
01 亚洲的位置和范围、自然环境.mp4559.94MB02 亚洲的位置和范围、自然环境(北美洲).mp4127.29MB03 日本.mp4130.79MB04 东南亚.mp4257.64MB05 印度.mp4222.68MB06 俄罗斯.mp4235.32MB07 中东.mp4254.25MB08 欧洲西部.mp4226.06MB09 撒哈拉以南非洲.mp4585.23MB10 澳大利亚.mp4168.59MB11 美国.mp4239.44MB12 巴西.mp4126.21MB13 极地地区.mp4115.19MB看动画学初中化学9.48GB
03中考化学√503.47MB
8. 中考化学复习213.16MB
1. 我们周围的空气 复习.mp415.89MB2. 物质构成的奥秘 复习.mp412.47MB3. 自然界的水 复习.mp412.11MB4. 化学式与化学价 复习.mp411.59MB5. 化学方程式（上） 复习.mp410.48MB6. 化学方程式（下） 复习.mp410.75MB7. 碳和碳的氧化物（上） 复习.mp48.98MB8. 碳和碳的氧化物（下） 复习.mp410.78MB9. 燃料及其应用 复习.mp414.22MB10. 金属和金属材料（上） 复习.mp48.37MB11. 金属和金属材料（中） 复习.mp48.56MB12. 金属和金属材料（下）复习.mp49.72MB13. 溶液（上） 复习.mp410.23MB14. 溶液（中）复习.mp48.67MB15. 溶液（下） 复习.mp49.94MB16. 酸和碱（上） 复习.mp49.23MB17. 酸和碱（下） 复习.mp412.66MB18. 盐 化肥（上） 复习.mp49.67MB19. 盐 化肥（下） 复习.mp47.12MB20. 化学与生活 复习.mp411.71MB9. 中考化学专题-能力提升290.31MB
1. 化学计算常用方法——差量法.mp417.85MB2. 化学计算常用方法——关系式法.mp411.48MB3. 化学计算常用方法——读表题.mp48.89MB4. 化学计算常用方法——读图题.mp410.16MB5. 推断题的突破口——颜色.mp412.83MB6. 推断题的突破口——俗称和用途.mp410.91MB7. 推断题的突破口——化学之最.mp410.45MB8. 推断题的突破口——特征组成.mp410.36MB9. 推断题的突破口——特殊条件和现象.mp410.25MB10. 推断题的常用方法——穷举法.mp47.89MB11. 推断题常考的能相互转化的物质.mp49.22MB12. 推断题常考的三角关系.mp49.08MB13. 化学实验考点1——气体的检验.mp49.06MB14. 化学实验考点2——气体的除杂和干燥.mp48.57MB15. 化学实验考点3——离子的检验.mp411.82MB16. 化学实验考点4——物质的鉴别1.mp410.82MB17. 化学实验考点5——物质的鉴别2.mp49.25MB18. 化学实验考点6——物质的分离除杂1.mp48.68MB19. 化学实验考点7——物质的分离除杂2.mp410.16MB20. 化学实验考点8——装置气密性的检查.mp49.36MB21. 化学实验考点9——控制变量法1.mp48.95MB22. 化学实验考点10——控制变量法2.mp46.43MB23. 药品变质问题的探究——氢氧化钠的变质.mp48.97MB24. 药品变质问题的探究——氢氧化钠变质的例题分析.mp46.8MB25. 药品变质问题的探究——氢氧化钙的变质.mp48.43MB26. 药品变质问题的探究——氧化钙的变质.mp48.58MB27. 物质组成成分的探究——两种试剂混合反应后的组成.mp48.57MB28. 物质组成成分的探究——多次混合反应后的组成.mp49.13MB29. 物质组成成分的探究——生成物有两种可能的物质.mp46.77MB30. 酸的性质和质量分数的探究.mp410.62MB北京版936.33MB
构成物质的微粒65.75MB
03efd7abbaade3d3bac0885fcb161843.mp45.88MB6fb85e71dee299af6eb7044ce38e9766.mp43.38MB7cccf6c512b679e5af9dba85b99faa58.mp46.13MB34ba1f3f55ab216017ae5a9bed41d818.mp44.66MB91ccdaefb1fc8ad95fb544c7a2bcfdbd.mp46.67MB370e62329c3846079ce8b18c6355b1c7.mp44.86MB607d9f0140cfed1ed69a5859168f37c1.mp44.24MB28092e75534843478819ea32f07b6759.mp45.03MBa1c80e3dd8e09fe09db4afc155672a7b.mp44.39MBa3e7b1d88427943d2422668f042d4402.mp43.44MBb8a07d2bb0ef8ccbe456497682bb62b7.mp44.4MBbf1008954450fb449f13d6427d113a2e.mp43.27MBcc41b66a9b52739a40c8ffd2da4ed870.mp44.53MBf6ed878cb5cfdd853fdf4a69b1bba4c4.mp44.86MB化学反应的定量研究72.27MB
0bc747325a1b406efc01222350593a4d.mp47.06MB98aee8427b5594ea5aa26273264b6ba5.mp45.99MB523a561a29f452bbb1ebce0929108ba1.mp47.8MB31654eba9f378cdd5b4b8494594b5f44.mp412.09MB39669831057789068f924370998e6a72.mp411.2MBa99bf4c93f8897bc86a54db3c6c2c337.mp44.73MBb623481050425f4fddd1ecf8f0cc1c6b.mp47.49MBfc8c897cbcd673df5f21e533f0eed37b.mp47.69MBfcfe18a80499b87e2c879dc1d668c84f.mp48.24MB化学与社会生活31.88MB
5afdd4df073ce4560595867d88f9e166.mp47.35MB8c982e3f0ab1c383bfec7581c1746a72.mp45.85MB58e9f03d27cecc13193d0142cc3fbbc5.mp43.86MB89fd4cf69bc126642cf084f7bd816029.mp45.24MB1489fdce974b562a0126ceefa5d3b7f5.mp44.14MBbd22a9388939eaa840fb515e5464f44b.mp45.44MB化学元素与物质组成的表示60.04MB
0a4e1b311e9a01f17010f31b89f1ae00.mp44.09MB1d52be0d7019898fab3ea5300f20ee6c.mp42.94MB7f6c1bbdf2f720099c40afa385bf7f2c.mp48.63MB9f76c1dbcd50b12278ac85eb122cf74a.mp43.91MB31baac43731e3604e2c310848a2a524f.mp44.8MB67b00f3f6b58d7b9ccd9aa950fe14fef.mp45.31MB612b69904579bc36797919b00db6b896.mp44.66MB632aa4465eef151576361977254280d8.mp45.76MBab21a8c03f7d1745a0c5b79501de49cb.mp42.92MBad241cd4e505d70e10736e9a1e4122c8.mp43.6MBc11d3727d37251adfc254b21d2eecccc.mp43.23MBd08f9f6de973482678625150394cc367.mp46.07MBfa8c241c8bdefb31ef0b8050c76baccc.mp44.11MB金属144.34MB
1b6e85d491520478df820ab8fd7d2667.mp46.97MB2b6d0cfbd713e364856c78adf6a20551.mp46.37MB02cfe68c7b42affcf2769ce5f8f22a44.mp49.85MB2feef4bc96c5961bb0b8681d0ee7c2e3.mp45.68MB04c51eb940b788a2855bfaf3848ebb80.mp45.5MB08a113b12fd69b17366e2d9c83e82cae.mp46.14MB8c8c1696825f148ec5ee5e610d06b078.mp47.19MB09bd7f1002ebf564d5831e71eb02b6ba.mp411.37MB11b5995fe2e4f2a2aa3ee7374aaf782f.mp45.95MB42db305f57979f02f615faa47c9325a7.mp45.57MB745b118e99df7b383091ee931a78f1da.mp43.37MB1726fb23274d52f55c9e8a635800722c.mp45.56MB3630c5e5288cc97f6a136276c3284201.mp44.93MB465672495819a856d8ccb9f8aee12c4e.mp46.29MB9914aae0ddfa6f8a0d9596b9a406f81c.mp49.91MBa1955062aba285935384c6d49d31a5f7.mp46.59MBb37d6ff53dd47fe3c5d4f54bdc3c96f2.mp47.27MBb303d175402cb42adc001fd432a21f36.mp48.35MBc48d553c4bde784ce97b85222c832495.mp47.6MBc93b1c2a1705240bf98cdf295834d470.mp46.87MBffd908b277b933edd4280d2f10c38af5.mp47.02MB空气之谜73.32MB
0dd4eaeead18175184294cd51f255eb6.mp49.09MB0ea61f2495e4d63d4961618aab919c4b.mp42.1MB4e7f7b5e2e28700b1bc9cf256ef89d21.mp45.11MB7b997b5d7bb545ea836c4560a3429659.mp42.89MB053f09fbc5d0b20236ab98c32a924fbf.mp46.04MB151b9d0c273bec330143ff870774028c.mp43.99MB778af4a06e90f5c4e4ad31785dfd62e5.mp42.11MB810ff0ee911d3f604871ca366173735a.mp44.37MB2410ab3adb7fbf205e145135f78eaf77.mp44.01MB29083fe766f71980ef8e924e70862054.mp44.63MB3343cd7be7e50d9f95ff07c79fa32d4f.mp42.28MBb1389d409c3ff68ff1438ae8aa3e1d96.mp43.43MBcfcb5ca53b9c2c22af47e0e4196734c4.mp41.95MBd2c5b119a76d3d7d70875d59453d20c6.mp43.42MBd9299c92daf783cbc7201b85d03e8e19.mp45.49MBde81da3cb46a34de8164897d27da2a76.mp44.05MBe014cf0aef62abd7fca8d1886242f01f.mp43.94MBfca71fb609394b783c841bbd11bfdc43.mp44.43MB燃烧的学问78.36MB
2bf012808b328d9e10ffce509dcca07a.mp46.8MB2eaa694ff75c035d156b0d0846c095e9.mp46.38MB3c50adf6b3c2af37d24ddd9ba7016dc3.mp48.78MB4ab88596e27eea731411484d4a6504b7.mp45.8MB6eb4efea92d4740693a97fc5131ad176.mp47.49MB67bc7edf97876069d408ee87946e0f92.mp46.1MB77f28297fbbe2075723b2bf7d4fe26a2.mp49.06MB403edb122684649daaeead6ff52f01f8.mp45.71MB10365ffc00d21e47d8b9ddc387df85bc.mp47.31MB300914289e45fb568a13ad55cfd4c666.mp45.5MBc6258b564f98c541547be86e5031e192.mp49.41MB溶液117.45MB
3ff287cb81bea4678126f1915dae9bc5.mp413.1MB4fa5ec351a589239d49a2b4ddd92c2d9.mp43.99MB6d627f431ce0486e0cc63adcceb16a77.mp48.44MB8c8056e8ae8b3f995f435760461e9c99.mp45.15MB018f26bc03419b1b21e4559100eed635.mp47.91MB31f34d7cb2c71073e02c4592a5d732a4.mp410.11MB50aa3a89adfbf5828a621c4059f77578.mp45.63MB94c39a78bfa1765ae941d64632a59bc0.mp45.53MB317ca8b6bd0ebdd8f9d22f849c8f4fea.mp46.63MB0548c0c731d4d68c5d8f07d025fbcdba.mp47.54MB1684e57b304c4f9f553d38c505687b53.mp46.82MBb0a85d99449c12962aecd8efd63f511a.mp49.8MBc88d4a5d870b9e16f76ae540bf5ef1d0.mp46.57MBc439d18f28576fb4136677f0a53cfd53.mp47.01MBec47b7045e971d86cdef14aa79ffd580.mp45.75MBf0ceaeb062997021874d943f9d3b2e4c.mp47.46MB酸与碱77.1MB
1ed2e8d48e41ed74040e4756616b974f.mp46.11MB7b84f603cdb98ae78d454f60e638c984.mp43.96MB29e06f09e8115bcf34a91602804b55c0.mp42.93MB44e51770efb494873cb67083cf4533a9.mp44.67MB92e648d171bcf5cd419b66c0f14a0819.mp45.09MB0719d468e49d1d10891caaa1e2c69acb.mp47.42MB97413dd5e6312e1db1033edda4f1412b.mp44.28MBaa76af0733955238006551e6ffdb4480.mp45.31MBaf19f09662be3ecad0a1080474ff2b91.mp44.11MBb23c9c8cf8166c0859493f572774bdf5.mp46.77MBbb2e94cfdde64a056447289369de54f8.mp44.03MBbb8553c5d5e92f22de498269cfa4fc06.mp42.95MBe44a55e3a3d00c0bd2f2326b480976e3.mp49.43MBf4f1a062ccc158fd143bfaa76f6b75e0.mp410.05MB碳的世界65.61MB
1cc692d647396dbfc1354f91a84be65a.mp48.26MB3b1f007cd8c60ecb1e7dd37c449309e9.mp44.83MB8e948d1a712f7c14690137fa45d178fa.mp47.02MB9be71ce00054b6335471ea32d746074f.mp43.11MB56ba0d5ac1d5744f21dd8c09943dbebe.mp45.41MB260df8a05963491393de71e40227ba6d.mp44.72MB89865a452c706ae55e696986d1cbf5e4.mp47.67MBbd75d7322fac4c3e913d62ccdaf9483a.mp45.16MBf3fa09791d8b2b34261475fcd3ba0d8d.mp45.1MBf752854a58bccc088379b051a2ea8fd2.mp47.47MBff02cd59118ee609591043bf870cda49.mp46.86MB盐49.34MB
2deee2e15c573ce92e4866bd092da1b7.mp44.83MB86bdc2a5f4c30cc2a66de084fb968591.mp45.83MB275a8432465a491d221784336861bf90.mp46.02MB773bfdd3f79c24ca683fb47a424eb8fa.mp48MB804cba42dee55c6112086e3c4af8ceab.mp47.54MB36781d841f00b334ee9e2837c449ba8a.mp45.79MB75563cc7ac61e1ddf2b6954edb3229db.mp43.71MBe24ce2d6a41f7b1a0ac1519568e84b77.mp43.93MBf74e23a702fd4719fc4ab5b697ee67f0.mp43.68MB最常见的液体 水17.16MB
9d0bcbb7e6c105cc9dfca8fe37c4d1db.mp43.14MB38aadb7a0e2e05ad0728669de62ca804.mp44.67MB225796885ca9a2c9a8a55c035a8a32a7.mp43.55MBde73c209130903295b03719b6b674397.mp43.37MBe349562a4c176a5305aa594582ca7caa.mp42.43MB走进化学83.72MB
0ea1db8c6a55afb3b9f46ab7d2f0e176.mp45.14MB62e3720ab54227ba8315e521c46bab94.mp46.86MB70f43bdebd18d94a46f6407ce286a106.mp48.03MB87fcb1b240d40d7774195c361ad8208f.mp44.33MB183a88a32b47546aa71c5e178a51bb7b.mp45.84MB636ab9a82e36cc3593b8699f72870e08.mp46.29MB741df97acffce958d7dbaa820759abe2.mp46.79MB159187349840a981d4ce8409c23e0f25.mp412.19MB90599036486edb5d9ddb27b649da2ba6.mp44.46MBb0325ca3d88ea566e5ad329d67479cf2.mp412.17MBc775ce41e2d7bff3a13e38d3d75873e1.mp42.72MBecf368f6378e32db5e3c92ab570cc1d8.mp48.91MB沪教版942.81MB
化学与社会发展5.8MB
4ab88596e27eea731411484d4a6504b7.mp45.8MB化学与社会发展23.1MB
2eaa694ff75c035d156b0d0846c095e9.mp46.38MB5afdd4df073ce4560595867d88f9e166.mp47.35MB58e9f03d27cecc13193d0142cc3fbbc5.mp43.86MB300914289e45fb568a13ad55cfd4c666.mp45.5MB金属的冶炼与利用142.83MB
1b6e85d491520478df820ab8fd7d2667.mp46.97MB2b6d0cfbd713e364856c78adf6a20551.mp46.37MB02cfe68c7b42affcf2769ce5f8f22a44.mp49.85MB2feef4bc96c5961bb0b8681d0ee7c2e3.mp45.68MB04c51eb940b788a2855bfaf3848ebb80.mp45.5MB08a113b12fd69b17366e2d9c83e82cae.mp46.14MB8c8c1696825f148ec5ee5e610d06b078.mp47.19MB09bd7f1002ebf564d5831e71eb02b6ba.mp411.37MB11b5995fe2e4f2a2aa3ee7374aaf782f.mp45.95MB745b118e99df7b383091ee931a78f1da.mp43.37MB1726fb23274d52f55c9e8a635800722c.mp45.56MB3630c5e5288cc97f6a136276c3284201.mp44.93MB465672495819a856d8ccb9f8aee12c4e.mp46.29MB9914aae0ddfa6f8a0d9596b9a406f81c.mp49.91MBa1955062aba285935384c6d49d31a5f7.mp46.59MBb37d6ff53dd47fe3c5d4f54bdc3c96f2.mp47.27MBb303d175402cb42adc001fd432a21f36.mp48.35MBc48d553c4bde784ce97b85222c832495.mp47.6MBc93b1c2a1705240bf98cdf295834d470.mp46.87MBf7900685194395f1542e13276bb6633d.mp44.06MBffd908b277b933edd4280d2f10c38af5.mp47.02MB开启化学之门116.51MB
0dd4eaeead18175184294cd51f255eb6.mp49.09MB0ea1db8c6a55afb3b9f46ab7d2f0e176.mp45.14MB9f76c1dbcd50b12278ac85eb122cf74a.mp43.91MB62e3720ab54227ba8315e521c46bab94.mp46.86MB70f43bdebd18d94a46f6407ce286a106.mp48.03MB183a88a32b47546aa71c5e178a51bb7b.mp45.84MB636ab9a82e36cc3593b8699f72870e08.mp46.29MB741df97acffce958d7dbaa820759abe2.mp46.79MB810ff0ee911d3f604871ca366173735a.mp44.37MB159187349840a981d4ce8409c23e0f25.mp412.19MB90599036486edb5d9ddb27b649da2ba6.mp44.46MBb0325ca3d88ea566e5ad329d67479cf2.mp412.17MBc775ce41e2d7bff3a13e38d3d75873e1.mp42.72MBde81da3cb46a34de8164897d27da2a76.mp44.05MBecf368f6378e32db5e3c92ab570cc1d8.mp48.91MBf752854a58bccc088379b051a2ea8fd2.mp47.47MBfcfe18a80499b87e2c879dc1d668c84f.mp48.24MB溶解现象133.05MB
3ff287cb81bea4678126f1915dae9bc5.mp413.1MB4fa5ec351a589239d49a2b4ddd92c2d9.mp43.99MB6d627f431ce0486e0cc63adcceb16a77.mp48.44MB8c8056e8ae8b3f995f435760461e9c99.mp45.15MB018f26bc03419b1b21e4559100eed635.mp47.91MB31f34d7cb2c71073e02c4592a5d732a4.mp410.11MB50aa3a89adfbf5828a621c4059f77578.mp45.63MB94c39a78bfa1765ae941d64632a59bc0.mp45.53MB303ae74f6bfcafcda149a6d9713d2572.mp48.06MB317ca8b6bd0ebdd8f9d22f849c8f4fea.mp46.63MB0548c0c731d4d68c5d8f07d025fbcdba.mp47.54MB804cba42dee55c6112086e3c4af8ceab.mp47.54MB1684e57b304c4f9f553d38c505687b53.mp46.82MBb0a85d99449c12962aecd8efd63f511a.mp49.8MBc88d4a5d870b9e16f76ae540bf5ef1d0.mp46.57MBc439d18f28576fb4136677f0a53cfd53.mp47.01MBec47b7045e971d86cdef14aa79ffd580.mp45.75MBf0ceaeb062997021874d943f9d3b2e4c.mp47.46MB认识化学变化119.47MB
0bc747325a1b406efc01222350593a4d.mp47.06MB3c50adf6b3c2af37d24ddd9ba7016dc3.mp48.78MB6eb4efea92d4740693a97fc5131ad176.mp47.49MB77f28297fbbe2075723b2bf7d4fe26a2.mp49.06MB98aee8427b5594ea5aa26273264b6ba5.mp45.99MB403edb122684649daaeead6ff52f01f8.mp45.71MB523a561a29f452bbb1ebce0929108ba1.mp47.8MB10365ffc00d21e47d8b9ddc387df85bc.mp47.31MB31654eba9f378cdd5b4b8494594b5f44.mp412.09MB39669831057789068f924370998e6a72.mp411.2MB89865a452c706ae55e696986d1cbf5e4.mp47.67MBa99bf4c93f8897bc86a54db3c6c2c337.mp44.73MBb623481050425f4fddd1ecf8f0cc1c6b.mp47.49MBc6258b564f98c541547be86e5031e192.mp49.41MBfc8c897cbcd673df5f21e533f0eed37b.mp47.69MB身边的化学物质106.87MB
0ea61f2495e4d63d4961618aab919c4b.mp42.1MB1cc692d647396dbfc1354f91a84be65a.mp48.26MB4e7f7b5e2e28700b1bc9cf256ef89d21.mp45.11MB7b997b5d7bb545ea836c4560a3429659.mp42.89MB8e948d1a712f7c14690137fa45d178fa.mp47.02MB38aadb7a0e2e05ad0728669de62ca804.mp44.67MB053f09fbc5d0b20236ab98c32a924fbf.mp46.04MB56ba0d5ac1d5744f21dd8c09943dbebe.mp45.41MB87fcb1b240d40d7774195c361ad8208f.mp44.33MB151b9d0c273bec330143ff870774028c.mp43.99MB778af4a06e90f5c4e4ad31785dfd62e5.mp42.11MB225796885ca9a2c9a8a55c035a8a32a7.mp43.55MB2410ab3adb7fbf205e145135f78eaf77.mp44.01MB29083fe766f71980ef8e924e70862054.mp44.63MB3343cd7be7e50d9f95ff07c79fa32d4f.mp42.28MBb1389d409c3ff68ff1438ae8aa3e1d96.mp43.43MBbd75d7322fac4c3e913d62ccdaf9483a.mp45.16MBcfcb5ca53b9c2c22af47e0e4196734c4.mp41.95MBd2c5b119a76d3d7d70875d59453d20c6.mp43.42MBd9299c92daf783cbc7201b85d03e8e19.mp45.49MBde73c209130903295b03719b6b674397.mp43.37MBe014cf0aef62abd7fca8d1886242f01f.mp43.94MBe349562a4c176a5305aa594582ca7caa.mp42.43MBfca71fb609394b783c841bbd11bfdc43.mp44.43MBff02cd59118ee609591043bf870cda49.mp46.86MB食品中的有机化合物20.52MB
8c982e3f0ab1c383bfec7581c1746a72.mp45.85MB1489fdce974b562a0126ceefa5d3b7f5.mp44.14MBbd22a9388939eaa840fb515e5464f44b.mp45.44MBf3fa09791d8b2b34261475fcd3ba0d8d.mp45.1MB物质组织的奥妙143.1MB
0a4e1b311e9a01f17010f31b89f1ae00.mp44.09MB1d52be0d7019898fab3ea5300f20ee6c.mp42.94MB03efd7abbaade3d3bac0885fcb161843.mp45.88MB6fb85e71dee299af6eb7044ce38e9766.mp43.38MB7cccf6c512b679e5af9dba85b99faa58(1).mp46.13MB7cccf6c512b679e5af9dba85b99faa58.mp46.13MB7f6c1bbdf2f720099c40afa385bf7f2c.mp48.63MB31baac43731e3604e2c310848a2a524f.mp44.8MB34ba1f3f55ab216017ae5a9bed41d818.mp44.66MB67b00f3f6b58d7b9ccd9aa950fe14fef.mp45.31MB89fd4cf69bc126642cf084f7bd816029(1).mp45.24MB89fd4cf69bc126642cf084f7bd816029.mp45.24MB370e62329c3846079ce8b18c6355b1c7.mp44.86MB607d9f0140cfed1ed69a5859168f37c1.mp44.24MB612b69904579bc36797919b00db6b896.mp44.66MB632aa4465eef151576361977254280d8.mp45.76MB28092e75534843478819ea32f07b6759.mp45.03MBa1c80e3dd8e09fe09db4afc155672a7b.mp44.39MBa3e7b1d88427943d2422668f042d4402.mp43.44MBab21a8c03f7d1745a0c5b79501de49cb.mp42.92MBad241cd4e505d70e10736e9a1e4122c8(1).mp43.6MBad241cd4e505d70e10736e9a1e4122c8.mp43.6MBb8a07d2bb0ef8ccbe456497682bb62b7(1).mp44.4MBb8a07d2bb0ef8ccbe456497682bb62b7.mp44.4MBbf1008954450fb449f13d6427d113a2e(1).mp43.27MBbf1008954450fb449f13d6427d113a2e.mp43.27MBc11d3727d37251adfc254b21d2eecccc.mp43.23MBcc41b66a9b52739a40c8ffd2da4ed870.mp44.53MBd08f9f6de973482678625150394cc367.mp46.07MBf6ed878cb5cfdd853fdf4a69b1bba4c4.mp44.86MBfa8c241c8bdefb31ef0b8050c76baccc.mp44.11MB应用广泛的酸碱盐131.56MB
1ed2e8d48e41ed74040e4756616b974f.mp46.11MB2deee2e15c573ce92e4866bd092da1b7.mp44.83MB7b84f603cdb98ae78d454f60e638c984.mp43.96MB9e6e7483a2506f2ec73d957c9dc103d3.mp48.57MB29e06f09e8115bcf34a91602804b55c0.mp42.93MB44e51770efb494873cb67083cf4533a9.mp44.67MB86bdc2a5f4c30cc2a66de084fb968591.mp45.83MB92e648d171bcf5cd419b66c0f14a0819.mp45.09MB275a8432465a491d221784336861bf90.mp46.02MB0719d468e49d1d10891caaa1e2c69acb.mp47.42MB773bfdd3f79c24ca683fb47a424eb8fa.mp48MB36781d841f00b334ee9e2837c449ba8a.mp45.79MB75563cc7ac61e1ddf2b6954edb3229db.mp43.71MB97413dd5e6312e1db1033edda4f1412b.mp44.28MBaa76af0733955238006551e6ffdb4480.mp45.31MBaf19f09662be3ecad0a1080474ff2b91.mp44.11MBb23c9c8cf8166c0859493f572774bdf5.mp46.77MBbb2e94cfdde64a056447289369de54f8.mp44.03MBbb8553c5d5e92f22de498269cfa4fc06.mp42.95MBbe4c7438beabe257938e9bd6ba60376b.mp44.1MBe24ce2d6a41f7b1a0ac1519568e84b77.mp43.93MBe44a55e3a3d00c0bd2f2326b480976e3.mp49.43MBf4f1a062ccc158fd143bfaa76f6b75e0.mp410.05MBf74e23a702fd4719fc4ab5b697ee67f0.mp43.68MB华师版612.91MB
七年级196.21MB
空气90.77MB
0dd4eaeead18175184294cd51f255eb6.mp49.09MB1cc692d647396dbfc1354f91a84be65a.mp48.26MB3c50adf6b3c2af37d24ddd9ba7016dc3.mp48.78MB6eb4efea92d4740693a97fc5131ad176.mp47.49MB8e948d1a712f7c14690137fa45d178fa.mp47.02MB58e9f03d27cecc13193d0142cc3fbbc5.mp43.86MB77f28297fbbe2075723b2bf7d4fe26a2.mp49.06MB151b9d0c273bec330143ff870774028c.mp43.99MB260df8a05963491393de71e40227ba6d.mp44.72MB778af4a06e90f5c4e4ad31785dfd62e5.mp42.11MB810ff0ee911d3f604871ca366173735a.mp44.37MB10365ffc00d21e47d8b9ddc387df85bc.mp47.31MB29083fe766f71980ef8e924e70862054.mp44.63MB3343cd7be7e50d9f95ff07c79fa32d4f.mp42.28MBba848cb0c365a06e2546145ef902bea8.mp42.63MBbd75d7322fac4c3e913d62ccdaf9483a.mp45.16MB水105.45MB
3ff287cb81bea4678126f1915dae9bc5.mp413.1MB4fa5ec351a589239d49a2b4ddd92c2d9.mp43.99MB6d627f431ce0486e0cc63adcceb16a77.mp48.44MB9d0bcbb7e6c105cc9dfca8fe37c4d1db.mp43.14MB38aadb7a0e2e05ad0728669de62ca804.mp44.67MB50aa3a89adfbf5828a621c4059f77578.mp45.63MB94c39a78bfa1765ae941d64632a59bc0.mp45.53MB0548c0c731d4d68c5d8f07d025fbcdba.mp47.54MB159187349840a981d4ce8409c23e0f25.mp412.19MB1684e57b304c4f9f553d38c505687b53.mp46.82MB225796885ca9a2c9a8a55c035a8a32a7.mp43.55MBb0a85d99449c12962aecd8efd63f511a.mp49.8MBc88d4a5d870b9e16f76ae540bf5ef1d0.mp46.57MBc439d18f28576fb4136677f0a53cfd53.mp47.01MBf0ceaeb062997021874d943f9d3b2e4c.mp47.46MB八年级74.98MB
物质的构成74.98MB
0a4e1b311e9a01f17010f31b89f1ae00.mp44.09MB03efd7abbaade3d3bac0885fcb161843.mp45.88MB6fb85e71dee299af6eb7044ce38e9766.mp43.38MB7cccf6c512b679e5af9dba85b99faa58.mp46.13MB7f6c1bbdf2f720099c40afa385bf7f2c.mp48.63MB31baac43731e3604e2c310848a2a524f.mp44.8MB34ba1f3f55ab216017ae5a9bed41d818.mp44.66MB67b00f3f6b58d7b9ccd9aa950fe14fef.mp45.31MB370e62329c3846079ce8b18c6355b1c7.mp44.86MB607d9f0140cfed1ed69a5859168f37c1.mp44.24MB612b69904579bc36797919b00db6b896.mp44.66MB632aa4465eef151576361977254280d8.mp45.76MB804cba42dee55c6112086e3c4af8ceab.mp47.54MB28092e75534843478819ea32f07b6759.mp45.03MB九年级341.72MB
化学反应1101.37MB
0bc747325a1b406efc01222350593a4d.mp47.06MB0ea61f2495e4d63d4961618aab919c4b.mp42.1MB1ed2e8d48e41ed74040e4756616b974f.mp46.11MB4e7f7b5e2e28700b1bc9cf256ef89d21.mp45.11MB98aee8427b5594ea5aa26273264b6ba5.mp45.99MB523a561a29f452bbb1ebce0929108ba1.mp47.8MB0719d468e49d1d10891caaa1e2c69acb.mp47.42MB31654eba9f378cdd5b4b8494594b5f44.mp412.09MB39669831057789068f924370998e6a72.mp411.2MBa99bf4c93f8897bc86a54db3c6c2c337.mp44.73MBb623481050425f4fddd1ecf8f0cc1c6b.mp47.49MBe014cf0aef62abd7fca8d1886242f01f.mp43.94MBfc8c897cbcd673df5f21e533f0eed37b.mp47.69MBfca71fb609394b783c841bbd11bfdc43.mp44.43MBfcfe18a80499b87e2c879dc1d668c84f.mp48.24MB化学反应2126.93MB
2b6d0cfbd713e364856c78adf6a20551.mp46.37MB02cfe68c7b42affcf2769ce5f8f22a44.mp49.85MB2feef4bc96c5961bb0b8681d0ee7c2e3.mp45.68MB7b84f603cdb98ae78d454f60e638c984.mp43.96MB08a113b12fd69b17366e2d9c83e82cae.mp46.14MB09bd7f1002ebf564d5831e71eb02b6ba.mp411.37MB29e06f09e8115bcf34a91602804b55c0.mp42.93MB44e51770efb494873cb67083cf4533a9.mp44.67MB745b118e99df7b383091ee931a78f1da.mp43.37MB1726fb23274d52f55c9e8a635800722c.mp45.56MB465672495819a856d8ccb9f8aee12c4e.mp46.29MB97413dd5e6312e1db1033edda4f1412b.mp44.28MB9914aae0ddfa6f8a0d9596b9a406f81c.mp49.91MBa1955062aba285935384c6d49d31a5f7.mp46.59MBaa76af0733955238006551e6ffdb4480.mp45.31MBaf19f09662be3ecad0a1080474ff2b91.mp44.11MBb37d6ff53dd47fe3c5d4f54bdc3c96f2.mp47.27MBbb2e94cfdde64a056447289369de54f8.mp44.03MBbb8553c5d5e92f22de498269cfa4fc06.mp42.95MBc93b1c2a1705240bf98cdf295834d470.mp46.87MBe44a55e3a3d00c0bd2f2326b480976e3.mp49.43MB化学反应390MB
2bf012808b328d9e10ffce509dcca07a.mp46.8MB2eaa694ff75c035d156b0d0846c095e9.mp46.38MB4ab88596e27eea731411484d4a6504b7.mp45.8MB5afdd4df073ce4560595867d88f9e166.mp47.35MB8c982e3f0ab1c383bfec7581c1746a72.mp45.85MB56ba0d5ac1d5744f21dd8c09943dbebe.mp45.41MB67bc7edf97876069d408ee87946e0f92.mp46.1MB86bdc2a5f4c30cc2a66de084fb968591.mp45.83MB1489fdce974b562a0126ceefa5d3b7f5.mp44.14MB300914289e45fb568a13ad55cfd4c666.mp45.5MB36781d841f00b334ee9e2837c449ba8a.mp45.79MB75563cc7ac61e1ddf2b6954edb3229db.mp43.71MBbd22a9388939eaa840fb515e5464f44b.mp45.44MBe24ce2d6a41f7b1a0ac1519568e84b77.mp43.93MBf3fa09791d8b2b34261475fcd3ba0d8d.mp45.1MBff02cd59118ee609591043bf870cda49.mp46.86MB物质的转化和元素的循环23.42MB
2deee2e15c573ce92e4866bd092da1b7.mp44.83MB3b1f007cd8c60ecb1e7dd37c449309e9.mp44.83MB275a8432465a491d221784336861bf90.mp46.02MBf74e23a702fd4719fc4ab5b697ee67f0.mp43.68MBf7900685194395f1542e13276bb6633d.mp44.06MB鲁教版875.82MB
步入化学殿堂60.49MB
0ea1db8c6a55afb3b9f46ab7d2f0e176.mp45.14MB70f43bdebd18d94a46f6407ce286a106.mp48.03MB183a88a32b47546aa71c5e178a51bb7b.mp45.84MB636ab9a82e36cc3593b8699f72870e08.mp46.29MB741df97acffce958d7dbaa820759abe2.mp46.79MB159187349840a981d4ce8409c23e0f25.mp412.19MBb0325ca3d88ea566e5ad329d67479cf2.mp412.17MBde81da3cb46a34de8164897d27da2a76.mp44.05MB常见的酸和碱85.67MB
1ed2e8d48e41ed74040e4756616b974f.mp46.11MB7b84f603cdb98ae78d454f60e638c984.mp43.96MB9e6e7483a2506f2ec73d957c9dc103d3.mp48.57MB29e06f09e8115bcf34a91602804b55c0.mp42.93MB44e51770efb494873cb67083cf4533a9.mp44.67MB92e648d171bcf5cd419b66c0f14a0819.mp45.09MB0719d468e49d1d10891caaa1e2c69acb.mp47.42MB97413dd5e6312e1db1033edda4f1412b.mp44.28MBaa76af0733955238006551e6ffdb4480.mp45.31MBaf19f09662be3ecad0a1080474ff2b91.mp44.11MBb23c9c8cf8166c0859493f572774bdf5.mp46.77MBbb2e94cfdde64a056447289369de54f8.mp44.03MBbb8553c5d5e92f22de498269cfa4fc06.mp42.95MBe44a55e3a3d00c0bd2f2326b480976e3.mp49.43MBf4f1a062ccc158fd143bfaa76f6b75e0.mp410.05MB定量研究化学变化79.58MB
0bc747325a1b406efc01222350593a4d.mp47.06MB98aee8427b5594ea5aa26273264b6ba5.mp45.99MB523a561a29f452bbb1ebce0929108ba1.mp47.8MB10365ffc00d21e47d8b9ddc387df85bc.mp47.31MB31654eba9f378cdd5b4b8494594b5f44.mp412.09MB39669831057789068f924370998e6a72.mp411.2MBa99bf4c93f8897bc86a54db3c6c2c337.mp44.73MBb623481050425f4fddd1ecf8f0cc1c6b.mp47.49MBfc8c897cbcd673df5f21e533f0eed37b.mp47.69MBfcfe18a80499b87e2c879dc1d668c84f.mp48.24MB海水中的化学66.44MB
3ff287cb81bea4678126f1915dae9bc5.mp413.1MB8c8056e8ae8b3f995f435760461e9c99.mp45.15MB018f26bc03419b1b21e4559100eed635.mp47.91MB86bdc2a5f4c30cc2a66de084fb968591.mp45.83MB0548c0c731d4d68c5d8f07d025fbcdba.mp47.54MB804cba42dee55c6112086e3c4af8ceab.mp47.54MB36781d841f00b334ee9e2837c449ba8a.mp45.79MB75563cc7ac61e1ddf2b6954edb3229db.mp43.71MBbe4c7438beabe257938e9bd6ba60376b.mp44.1MBec47b7045e971d86cdef14aa79ffd580.mp45.75MB化学与健康20.66MB
8c982e3f0ab1c383bfec7581c1746a72.mp45.85MB89fd4cf69bc126642cf084f7bd816029.mp45.24MB1489fdce974b562a0126ceefa5d3b7f5.mp44.14MBbd22a9388939eaa840fb515e5464f44b.mp45.44MB化学与社会发展13.37MB
5afdd4df073ce4560595867d88f9e166.mp47.35MB275a8432465a491d221784336861bf90.mp46.02MB金属144.34MB
1b6e85d491520478df820ab8fd7d2667.mp46.97MB2b6d0cfbd713e364856c78adf6a20551.mp46.37MB02cfe68c7b42affcf2769ce5f8f22a44.mp49.85MB2feef4bc96c5961bb0b8681d0ee7c2e3.mp45.68MB04c51eb940b788a2855bfaf3848ebb80.mp45.5MB08a113b12fd69b17366e2d9c83e82cae.mp46.14MB8c8c1696825f148ec5ee5e610d06b078.mp47.19MB09bd7f1002ebf564d5831e71eb02b6ba.mp411.37MB11b5995fe2e4f2a2aa3ee7374aaf782f.mp45.95MB42db305f57979f02f615faa47c9325a7.mp45.57MB745b118e99df7b383091ee931a78f1da.mp43.37MB1726fb23274d52f55c9e8a635800722c.mp45.56MB3630c5e5288cc97f6a136276c3284201.mp44.93MB465672495819a856d8ccb9f8aee12c4e.mp46.29MB9914aae0ddfa6f8a0d9596b9a406f81c.mp49.91MBa1955062aba285935384c6d49d31a5f7.mp46.59MBb37d6ff53dd47fe3c5d4f54bdc3c96f2.mp47.27MBb303d175402cb42adc001fd432a21f36.mp48.35MBc48d553c4bde784ce97b85222c832495.mp47.6MBc93b1c2a1705240bf98cdf295834d470.mp46.87MBffd908b277b933edd4280d2f10c38af5.mp47.02MB燃烧与燃料115.75MB
1cc692d647396dbfc1354f91a84be65a.mp48.26MB2bf012808b328d9e10ffce509dcca07a.mp46.8MB2eaa694ff75c035d156b0d0846c095e9.mp46.38MB3c50adf6b3c2af37d24ddd9ba7016dc3.mp48.78MB4ab88596e27eea731411484d4a6504b7.mp45.8MB8e948d1a712f7c14690137fa45d178fa.mp47.02MB56ba0d5ac1d5744f21dd8c09943dbebe.mp45.41MB67bc7edf97876069d408ee87946e0f92.mp46.1MB77f28297fbbe2075723b2bf7d4fe26a2.mp49.06MB260df8a05963491393de71e40227ba6d.mp44.72MB403edb122684649daaeead6ff52f01f8.mp45.71MB300914289e45fb568a13ad55cfd4c666.mp45.5MB4983cd34703ecad027349e1bcc759f60.mp43.43MB89865a452c706ae55e696986d1cbf5e4.mp47.67MBbd75d7322fac4c3e913d62ccdaf9483a.mp45.16MBc6258b564f98c541547be86e5031e192.mp49.41MBfbed147e21572efb20e61e55f1b86fbc.mp43.67MBff02cd59118ee609591043bf870cda49.mp46.86MB溶液77.99MB
4fa5ec351a589239d49a2b4ddd92c2d9.mp43.99MB6d627f431ce0486e0cc63adcceb16a77.mp48.44MB31f34d7cb2c71073e02c4592a5d732a4.mp410.11MB50aa3a89adfbf5828a621c4059f77578.mp45.63MB94c39a78bfa1765ae941d64632a59bc0.mp45.53MB317ca8b6bd0ebdd8f9d22f849c8f4fea.mp46.63MB1684e57b304c4f9f553d38c505687b53.mp46.82MBb0a85d99449c12962aecd8efd63f511a.mp49.8MBc88d4a5d870b9e16f76ae540bf5ef1d0.mp46.57MBc439d18f28576fb4136677f0a53cfd53.mp47.01MBf0ceaeb062997021874d943f9d3b2e4c.mp47.46MB探秘水世界112.16MB
0a4e1b311e9a01f17010f31b89f1ae00.mp44.09MB0ea61f2495e4d63d4961618aab919c4b.mp42.1MB1d52be0d7019898fab3ea5300f20ee6c.mp42.94MB03efd7abbaade3d3bac0885fcb161843.mp45.88MB6fb85e71dee299af6eb7044ce38e9766.mp43.38MB9d0bcbb7e6c105cc9dfca8fe37c4d1db.mp43.14MB31baac43731e3604e2c310848a2a524f.mp44.8MB34ba1f3f55ab216017ae5a9bed41d818.mp44.66MB38aadb7a0e2e05ad0728669de62ca804.mp44.67MB62e3720ab54227ba8315e521c46bab94.mp46.86MB67b00f3f6b58d7b9ccd9aa950fe14fef.mp45.31MB87fcb1b240d40d7774195c361ad8208f.mp44.33MB91ccdaefb1fc8ad95fb544c7a2bcfdbd.mp46.67MB370e62329c3846079ce8b18c6355b1c7.mp44.86MB632aa4465eef151576361977254280d8.mp45.76MB810ff0ee911d3f604871ca366173735a.mp44.37MB225796885ca9a2c9a8a55c035a8a32a7.mp43.55MB28092e75534843478819ea32f07b6759.mp45.03MB90599036486edb5d9ddb27b649da2ba6.mp44.46MBa1c80e3dd8e09fe09db4afc155672a7b.mp44.39MBa3e7b1d88427943d2422668f042d4402.mp43.44MBb8a07d2bb0ef8ccbe456497682bb62b7.mp44.4MBc775ce41e2d7bff3a13e38d3d75873e1.mp42.72MBcc41b66a9b52739a40c8ffd2da4ed870.mp44.53MBde73c209130903295b03719b6b674397.mp43.37MBe349562a4c176a5305aa594582ca7caa.mp42.43MB我们周围的空气99.37MB
0dd4eaeead18175184294cd51f255eb6.mp49.09MB4e7f7b5e2e28700b1bc9cf256ef89d21.mp45.11MB7b997b5d7bb545ea836c4560a3429659.mp42.89MB7f6c1bbdf2f720099c40afa385bf7f2c.mp48.63MB9f76c1dbcd50b12278ac85eb122cf74a.mp43.91MB053f09fbc5d0b20236ab98c32a924fbf.mp46.04MB58e9f03d27cecc13193d0142cc3fbbc5.mp43.86MB151b9d0c273bec330143ff870774028c.mp43.99MB612b69904579bc36797919b00db6b896.mp44.66MB778af4a06e90f5c4e4ad31785dfd62e5.mp42.11MB2410ab3adb7fbf205e145135f78eaf77.mp44.01MB29083fe766f71980ef8e924e70862054.mp44.63MB3343cd7be7e50d9f95ff07c79fa32d4f.mp42.28MBab21a8c03f7d1745a0c5b79501de49cb.mp42.92MBad241cd4e505d70e10736e9a1e4122c8.mp43.6MBb1389d409c3ff68ff1438ae8aa3e1d96.mp43.43MBc11d3727d37251adfc254b21d2eecccc.mp43.23MBcfcb5ca53b9c2c22af47e0e4196734c4.mp41.95MBd2c5b119a76d3d7d70875d59453d20c6.mp43.42MBd08f9f6de973482678625150394cc367.mp46.07MBd9299c92daf783cbc7201b85d03e8e19.mp45.49MBe014cf0aef62abd7fca8d1886242f01f.mp43.94MBfa8c241c8bdefb31ef0b8050c76baccc.mp44.11MB仁爱版949.7MB
初识别酸碱盐141.77MB
1ed2e8d48e41ed74040e4756616b974f.mp46.11MB2deee2e15c573ce92e4866bd092da1b7.mp44.83MB7b84f603cdb98ae78d454f60e638c984.mp43.96MB9e6e7483a2506f2ec73d957c9dc103d3.mp48.57MB29e06f09e8115bcf34a91602804b55c0.mp42.93MB44e51770efb494873cb67083cf4533a9.mp44.67MB86bdc2a5f4c30cc2a66de084fb968591.mp45.83MB92e648d171bcf5cd419b66c0f14a0819.mp45.09MB275a8432465a491d221784336861bf90.mp46.02MB0719d468e49d1d10891caaa1e2c69acb.mp47.42MB773bfdd3f79c24ca683fb47a424eb8fa.mp48MB804cba42dee55c6112086e3c4af8ceab.mp47.54MB36781d841f00b334ee9e2837c449ba8a.mp45.79MB75563cc7ac61e1ddf2b6954edb3229db.mp43.71MB97413dd5e6312e1db1033edda4f1412b.mp44.28MBa1955062aba285935384c6d49d31a5f7.mp46.59MBaa76af0733955238006551e6ffdb4480.mp45.31MBaf19f09662be3ecad0a1080474ff2b91.mp44.11MBb23c9c8cf8166c0859493f572774bdf5.mp46.77MBbb2e94cfdde64a056447289369de54f8.mp44.03MBbb8553c5d5e92f22de498269cfa4fc06.mp42.95MBbe4c7438beabe257938e9bd6ba60376b.mp44.1MBe44a55e3a3d00c0bd2f2326b480976e3.mp49.43MBf4f1a062ccc158fd143bfaa76f6b75e0.mp410.05MBf74e23a702fd4719fc4ab5b697ee67f0.mp43.68MB化学变化及其表示72.27MB
0bc747325a1b406efc01222350593a4d.mp47.06MB98aee8427b5594ea5aa26273264b6ba5.mp45.99MB523a561a29f452bbb1ebce0929108ba1.mp47.8MB31654eba9f378cdd5b4b8494594b5f44.mp412.09MB39669831057789068f924370998e6a72.mp411.2MBa99bf4c93f8897bc86a54db3c6c2c337.mp44.73MBb623481050425f4fddd1ecf8f0cc1c6b.mp47.49MBfc8c897cbcd673df5f21e533f0eed37b.mp47.69MBfcfe18a80499b87e2c879dc1d668c84f.mp48.24MB化学与生活27.87MB
5afdd4df073ce4560595867d88f9e166.mp47.35MB8c982e3f0ab1c383bfec7581c1746a72.mp45.85MB1489fdce974b562a0126ceefa5d3b7f5.mp44.14MBbd22a9388939eaa840fb515e5464f44b.mp45.44MBf3fa09791d8b2b34261475fcd3ba0d8d.mp45.1MB金属和金属材料137.75MB
1b6e85d491520478df820ab8fd7d2667.mp46.97MB2b6d0cfbd713e364856c78adf6a20551.mp46.37MB02cfe68c7b42affcf2769ce5f8f22a44.mp49.85MB2feef4bc96c5961bb0b8681d0ee7c2e3.mp45.68MB04c51eb940b788a2855bfaf3848ebb80.mp45.5MB08a113b12fd69b17366e2d9c83e82cae.mp46.14MB8c8c1696825f148ec5ee5e610d06b078.mp47.19MB09bd7f1002ebf564d5831e71eb02b6ba.mp411.37MB11b5995fe2e4f2a2aa3ee7374aaf782f.mp45.95MB42db305f57979f02f615faa47c9325a7.mp45.57MB745b118e99df7b383091ee931a78f1da.mp43.37MB1726fb23274d52f55c9e8a635800722c.mp45.56MB3630c5e5288cc97f6a136276c3284201.mp44.93MB465672495819a856d8ccb9f8aee12c4e.mp46.29MB9914aae0ddfa6f8a0d9596b9a406f81c.mp49.91MBb37d6ff53dd47fe3c5d4f54bdc3c96f2.mp47.27MBb303d175402cb42adc001fd432a21f36.mp48.35MBc48d553c4bde784ce97b85222c832495.mp47.6MBc93b1c2a1705240bf98cdf295834d470.mp46.87MBffd908b277b933edd4280d2f10c38af5.mp47.02MB空气和水104.12MB
0dd4eaeead18175184294cd51f255eb6.mp49.09MB0ea61f2495e4d63d4961618aab919c4b.mp42.1MB4e7f7b5e2e28700b1bc9cf256ef89d21.mp45.11MB7b997b5d7bb545ea836c4560a3429659.mp42.89MB9d0bcbb7e6c105cc9dfca8fe37c4d1db.mp43.14MB38aadb7a0e2e05ad0728669de62ca804.mp44.67MB053f09fbc5d0b20236ab98c32a924fbf.mp46.04MB58e9f03d27cecc13193d0142cc3fbbc5.mp43.86MB62e3720ab54227ba8315e521c46bab94.mp46.86MB87fcb1b240d40d7774195c361ad8208f.mp44.33MB151b9d0c273bec330143ff870774028c.mp43.99MB778af4a06e90f5c4e4ad31785dfd62e5.mp42.11MB810ff0ee911d3f604871ca366173735a.mp44.37MB225796885ca9a2c9a8a55c035a8a32a7.mp43.55MB2410ab3adb7fbf205e145135f78eaf77.mp44.01MB29083fe766f71980ef8e924e70862054.mp44.63MB3343cd7be7e50d9f95ff07c79fa32d4f.mp42.28MBb1389d409c3ff68ff1438ae8aa3e1d96.mp43.43MBba848cb0c365a06e2546145ef902bea8.mp42.63MBcfcb5ca53b9c2c22af47e0e4196734c4.mp41.95MBd2c5b119a76d3d7d70875d59453d20c6.mp43.42MBd9299c92daf783cbc7201b85d03e8e19.mp45.49MBde73c209130903295b03719b6b674397.mp43.37MBe014cf0aef62abd7fca8d1886242f01f.mp43.94MBe349562a4c176a5305aa594582ca7caa.mp42.43MBfca71fb609394b783c841bbd11bfdc43.mp44.43MB燃料和燃烧154.84MB
1cc692d647396dbfc1354f91a84be65a.mp48.26MB2bf012808b328d9e10ffce509dcca07a.mp46.8MB2eaa694ff75c035d156b0d0846c095e9.mp46.38MB3b1f007cd8c60ecb1e7dd37c449309e9.mp44.83MB3c50adf6b3c2af37d24ddd9ba7016dc3.mp48.78MB4ab88596e27eea731411484d4a6504b7.mp45.8MB6eb4efea92d4740693a97fc5131ad176.mp47.49MB8e948d1a712f7c14690137fa45d178fa.mp47.02MB9be71ce00054b6335471ea32d746074f.mp43.11MB56ba0d5ac1d5744f21dd8c09943dbebe.mp45.41MB67bc7edf97876069d408ee87946e0f92.mp46.1MB77f28297fbbe2075723b2bf7d4fe26a2.mp49.06MB260df8a05963491393de71e40227ba6d.mp44.72MB10365ffc00d21e47d8b9ddc387df85bc.mp47.31MB300914289e45fb568a13ad55cfd4c666.mp45.5MB4983cd34703ecad027349e1bcc759f60.mp43.43MB89865a452c706ae55e696986d1cbf5e4.mp47.67MBbd75d7322fac4c3e913d62ccdaf9483a.mp45.16MBc6258b564f98c541547be86e5031e192.mp49.41MBe24ce2d6a41f7b1a0ac1519568e84b77.mp43.93MBf8c9c5cf3e0d641e76510b5d895b3772.mp46.6MBf752854a58bccc088379b051a2ea8fd2.mp47.47MBf7900685194395f1542e13276bb6633d.mp44.06MBfbed147e21572efb20e61e55f1b86fbc.mp43.67MBff02cd59118ee609591043bf870cda49.mp46.86MB物质的构成131.03MB
0a4e1b311e9a01f17010f31b89f1ae00.mp44.09MB1d52be0d7019898fab3ea5300f20ee6c.mp42.94MB03efd7abbaade3d3bac0885fcb161843.mp45.88MB6fb85e71dee299af6eb7044ce38e9766.mp43.38MB7cccf6c512b679e5af9dba85b99faa58.mp46.13MB7f6c1bbdf2f720099c40afa385bf7f2c.mp48.63MB9f76c1dbcd50b12278ac85eb122cf74a.mp43.91MB31baac43731e3604e2c310848a2a524f.mp44.8MB34ba1f3f55ab216017ae5a9bed41d818.mp44.66MB67b00f3f6b58d7b9ccd9aa950fe14fef.mp45.31MB89fd4cf69bc126642cf084f7bd816029.mp45.24MB91ccdaefb1fc8ad95fb544c7a2bcfdbd.mp46.67MB370e62329c3846079ce8b18c6355b1c7.mp44.86MB607d9f0140cfed1ed69a5859168f37c1.mp44.24MB612b69904579bc36797919b00db6b896.mp44.66MB632aa4465eef151576361977254280d8.mp45.76MB28092e75534843478819ea32f07b6759.mp45.03MBa1c80e3dd8e09fe09db4afc155672a7b.mp44.39MBa3e7b1d88427943d2422668f042d4402.mp43.44MBab21a8c03f7d1745a0c5b79501de49cb.mp42.92MBad241cd4e505d70e10736e9a1e4122c8.mp43.6MBb8a07d2bb0ef8ccbe456497682bb62b7.mp44.4MBbf1008954450fb449f13d6427d113a2e.mp43.27MBc11d3727d37251adfc254b21d2eecccc.mp43.23MBcc41b66a9b52739a40c8ffd2da4ed870.mp44.53MBd08f9f6de973482678625150394cc367.mp46.07MBf6ed878cb5cfdd853fdf4a69b1bba4c4.mp44.86MBfa8c241c8bdefb31ef0b8050c76baccc.mp44.11MB物质的溶解117.45MB
3ff287cb81bea4678126f1915dae9bc5.mp413.1MB4fa5ec351a589239d49a2b4ddd92c2d9.mp43.99MB6d627f431ce0486e0cc63adcceb16a77.mp48.44MB8c8056e8ae8b3f995f435760461e9c99.mp45.15MB018f26bc03419b1b21e4559100eed635.mp47.91MB31f34d7cb2c71073e02c4592a5d732a4.mp410.11MB50aa3a89adfbf5828a621c4059f77578.mp45.63MB94c39a78bfa1765ae941d64632a59bc0.mp45.53MB317ca8b6bd0ebdd8f9d22f849c8f4fea.mp46.63MB0548c0c731d4d68c5d8f07d025fbcdba.mp47.54MB1684e57b304c4f9f553d38c505687b53.mp46.82MBb0a85d99449c12962aecd8efd63f511a.mp49.8MBc88d4a5d870b9e16f76ae540bf5ef1d0.mp46.57MBc439d18f28576fb4136677f0a53cfd53.mp47.01MBec47b7045e971d86cdef14aa79ffd580.mp45.75MBf0ceaeb062997021874d943f9d3b2e4c.mp47.46MB走进化学殿堂62.6MB
0ea1db8c6a55afb3b9f46ab7d2f0e176.mp45.14MB70f43bdebd18d94a46f6407ce286a106.mp48.03MB183a88a32b47546aa71c5e178a51bb7b.mp45.84MB636ab9a82e36cc3593b8699f72870e08.mp46.29MB159187349840a981d4ce8409c23e0f25.mp412.19MBb0325ca3d88ea566e5ad329d67479cf2.mp412.17MBde81da3cb46a34de8164897d27da2a76.mp44.05MBecf368f6378e32db5e3c92ab570cc1d8.mp48.91MB人教版√1.15GB
01. 化学使世界变得更加绚丽多彩19.03MB
1. 什么是化学.mp48.94MB2. 化学发展史.mp410.09MB02. 走进化学世界96.04MB
1. 化学变化和物理变化.mp47.23MB2. 化学性质和物理性质.mp410.64MB3. 对蜡烛及其燃烧的探究.mp45.28MB4. 对人体吸入的空气和呼出的气体的探究.mp48.57MB5. 简单仪器.mp47.41MB6. 药品的取用.mp418.98MB7. 天平的使用.mp46.5MB8. 量筒的使用.mp46.13MB9. 酒精灯的使用.mp414.09MB10. 连接仪器装置.mp47.99MB11. 玻璃仪器洗干净的标准.mp43.22MB03. 我们周围的空气30.66MB
1. 空气中氧气含量的测定实验.mp411.16MB2. 空气成分.mp44.86MB3. 纯净物混合物的分类.mp45.26MB4. 空气中氮气和稀有气体的用途.mp44.73MB5. 空气污染及防治.mp44.64MB04. 氧气59.24MB
1. 氧气的物理性质.mp43.12MB2. 木炭燃烧.mp43.88MB3. 硫燃烧.mp42.95MB4. 铁燃烧.mp46.7MB5. 氧气的化学性质和用途.mp43.27MB6. 氧化反应.mp42.16MB7. 化合反应与氧化反应.mp45.21MB8. 加热高锰酸钾制氧气.mp47.28MB9. 过氧化氢溶液制氧气.mp44.66MB10. 氧气的收集、验满与检验.mp44.01MB11. 气体制取装置的选择.mp44.77MB12. 催化剂.mp46.34MB13. 分解反应.mp42.37MB14. 氧气的工业制法.mp42.51MB05. 物质构成的奥秘97.55MB
1. 物质的构成及分子的特征.mp47.01MB2. 探究分子运动实验.mp47.6MB3. 分子.mp45.29MB4. 用分子的观点解释物质的组成.mp44.91MB5. 用分子的观点解释物质的变化.mp43.73MB6. 分子与原子的区别与联系.mp47.11MB8. 原子的构成.mp45.12MB9. 原子核外电子的排布.mp45.57MB10. 原子结构示意图.mp45.94MB11. 原子结构与原子化学性质的关系.mp46.5MB12. 离子的定义及分类.mp43.89MB13. 离子符号的写法与意义.mp45.95MB14. 相对原子质量.mp44MB15. 相对原子质量、质子数、中子数之间的关系.mp45.06MB16. 元素的定义.mp45.37MB17. 地壳中元素的含量.mp43.21MB18. 元素符号的写法及意义.mp45.66MB19. 元素周期表简介及元素周期表提供的信息.mp45.64MB06. 自然界的水67.09MB
1. 爱护水资源.mp45.44MB2. 自来水净化.mp43.16MB3. 过滤.mp45.19MB4. 硬水和软水.mp43.89MB5. 氢气的性质与检验.mp44.17MB6. 水的组成实验.mp43.56MB7. 纯净物的分类――单质、化合物、氧化物.mp44.75MB9. 化学式的意义.mp44.56MB10. 化学式的读写.mp44.19MB11. 化合价.mp45.05MB12. 化合价的应用.mp45.69MB13. 原子团.mp410.13MB14. 化学符号及周边数字的意义.mp43.89MB15. 有关相对分子质量的计算.mp43.42MB07. 化学方程式88.52MB
1. 化学反应前后物质的质量关系的实验探究.mp414.67MB2. 质量守恒定律.mp49.17MB3. 实验探究质量守恒定律时应注意的问题.mp47.18MB4. 质量守恒定律的微观解释.mp48.98MB5. 质量守恒定律的相关计算.mp49MB6. 化学方程式.mp49.8MB7. 化学方程式的书写原则与步骤.mp410.66MB8. 化学方程式的配平方法.mp413.21MB9. 化学方程式的简单计算.mp45.85MB08. 碳和碳的氧化物92.54MB
1. 碳的几种单质.mp48.95MB2. 常温下化学性质稳定.mp43.37MB3. 碳与氧气的反应——可燃性.mp48.9MB4. 碳与某些氧化物的反应——还原性.mp45.95MB5. 二氧化碳的实验室制法.mp48.18MB6. 二氧化碳的实验室制法原料的选择.mp46.54MB7. 二氧化碳的物理性质.mp47.96MB8. 二氧化碳的化学性质--与水的反应.mp46.19MB9. 二氧化碳的化学性质--与澄清石灰水的反应.mp45.59MB10. 二氧化碳的用途及危害.mp49.14MB11. 一氧化碳的物理性质和毒性.mp47.72MB12. 一氧化碳的化学性质--可燃性.mp44.26MB13. 一氧化碳的化学性质--还原性.mp45.19MB14. 碳及其化合物的相互转化关系.mp44.58MB09. 燃料及其利用91.11MB
1. 燃烧和燃烧的条件.mp49.78MB2. 探究燃烧的条件.mp48.84MB3. 灭火的原理和方法.mp410.08MB4. 灭火器.mp49.7MB5. 易燃物和易爆物的安全知识.mp410.66MB6. 化学反应中的能量变化.mp46.78MB7. 煤和石油.mp47.1MB8. 天然气.mp46.84MB9. 合理利用与开发化石能源.mp46.91MB10. 使用燃料对环境的影响.mp47.61MB11. 能源的利用与开发.mp46.81MB10. 金属和金属材料137.9MB
1. 几种重要的金属.mp413.55MB2. 合金.mp411.93MB3. 金属与氧气的反应.mp49.28MB4. 探究金属与盐酸、稀硫酸的反应.mp411.86MB5. 金属与盐酸、稀硫酸的反应.mp48.28MB6. 金属与酸反应-图象问题（一）.mp48.57MB7. 金属与酸反应-图象问题（二）.mp46.45MB8. 金属与酸反应-天平问题.mp48.17MB9. 金属与酸反应-混合物计算.mp45.86MB10. 置换反应.mp45.33MB11. 探究金属活动性顺序.mp47.7MB12. 金属活动性顺序及其应用.mp48.78MB13. 选择试剂验证金属的活动性顺序.mp48.21MB14. 金属质量变化的判断.mp46.52MB15. 滤液与滤渣.mp49.95MB16. 金属流程.mp47.45MB11. 金属资源的利用和保护39.25MB
1. 金属在自然界中的存在.mp46.89MB2. 工业炼铁.mp46.82MB3. 一氧化碳还原氧化铁实验.mp48.17MB4. 铁生锈条件的探究.mp48.46MB5. 金属资源保护.mp48.91MB12. 溶液154.45MB
1. 溶液的形成、概念及特征.mp411.85MB2. 溶液的组成、命名及用途.mp48.59MB3. 溶解时的吸热或放热现象.mp49.17MB4. 乳化现象.mp411.52MB5. 饱和溶液和不饱和溶液.mp410.77MB6. 饱和溶液、不饱和溶液与浓溶液、稀溶液之间的关系.mp48.18MB7. 结晶.mp46.02MB8. 固体溶解度.mp415.72MB9. 固体溶解度的表示方法.mp49.7MB10. 固体溶解度曲线的应用.mp49.29MB11. 气体溶解度.mp47.35MB13. 溶质的质量分数.mp46.5MB14. 溶质质量分数和溶解度的区别和联系.mp410.15MB15. 溶液计算―直接计算.mp48.32MB16. 溶液计算―稀释、浓缩问题.mp45.07MB17. 溶液计算―与化学方程式的相关计算.mp47.85MB18. 溶液的配制.mp48.41MB13. 酸和碱102.58MB
1. 酸、碱与指示剂作用.mp47.25MB2. 几种常见的酸.mp45.19MB3. 浓硫酸的腐蚀性.mp410.13MB4. 浓硫酸的稀释.mp43.51MB5. 酸的化学性质.mp45.44MB6. 酸与金属氧化物的应用.mp44.71MB7. 几种常见的碱--氢氧化钠.mp46.46MB8. 几种常见的碱--氢氧化钙.mp44.83MB9. 碱的化学性质.mp43.54MB10. 酸、碱分别具有相似化学性质的原因.mp44.55MB12. 中和反应.mp411.29MB13. 中和反应在实际中的应用.mp46.21MB14. 溶液酸碱度的表示法-pH.mp48.84MB15. 中和反应的验证.mp412.19MB16. 溶液pH变化问题.mp48.45MB14. 盐、化肥64.24MB
1. 氯化钠.mp49.3MB2. 粗盐提纯.mp48.62MB3. 碳酸钙.mp44.6MB4. 碳酸钠.mp47.13MB5. 碳酸氢钠.mp44.96MB6. 碳酸根离子的检验.mp45.24MB7. 复分解反应.mp47.24MB9. 常见化肥的种类和作用.mp46.88MB10. 化肥的简易鉴别.mp45.8MB11. 氮肥的简单鉴别.mp44.48MB15. 化学与生活37.75MB
1. 蛋白质.mp44.62MB2. 糖类.mp46.82MB3. 油脂和维生素.mp46.28MB4. 化学元素与人体健康.mp45.59MB5. 有机化合物.mp45.88MB6. 有机合成材料.mp48.56MB上海版782.89MB
初识酸和碱57.98MB
7b84f603cdb98ae78d454f60e638c984.mp43.96MB9e6e7483a2506f2ec73d957c9dc103d3.mp48.57MB29e06f09e8115bcf34a91602804b55c0.mp42.93MB44e51770efb494873cb67083cf4533a9.mp44.67MB92e648d171bcf5cd419b66c0f14a0819.mp45.09MB97413dd5e6312e1db1033edda4f1412b.mp44.28MBaa76af0733955238006551e6ffdb4480.mp45.31MBb23c9c8cf8166c0859493f572774bdf5.mp46.77MBbb2e94cfdde64a056447289369de54f8.mp44.03MBbb8553c5d5e92f22de498269cfa4fc06.mp42.95MBe44a55e3a3d00c0bd2f2326b480976e3.mp49.43MB常用的金属和盐133.29MB
1b6e85d491520478df820ab8fd7d2667.mp46.97MB02cfe68c7b42affcf2769ce5f8f22a44.mp49.85MB2deee2e15c573ce92e4866bd092da1b7.mp44.83MB04c51eb940b788a2855bfaf3848ebb80.mp45.5MB8c8c1696825f148ec5ee5e610d06b078.mp47.19MB09bd7f1002ebf564d5831e71eb02b6ba.mp411.37MB11b5995fe2e4f2a2aa3ee7374aaf782f.mp45.95MB42db305f57979f02f615faa47c9325a7.mp45.57MB86bdc2a5f4c30cc2a66de084fb968591.mp45.83MB275a8432465a491d221784336861bf90.mp46.02MB745b118e99df7b383091ee931a78f1da.mp43.37MB773bfdd3f79c24ca683fb47a424eb8fa.mp48MB3630c5e5288cc97f6a136276c3284201.mp44.93MB36781d841f00b334ee9e2837c449ba8a.mp45.79MB465672495819a856d8ccb9f8aee12c4e.mp46.29MB75563cc7ac61e1ddf2b6954edb3229db.mp43.71MB9914aae0ddfa6f8a0d9596b9a406f81c.mp49.91MBa1955062aba285935384c6d49d31a5f7.mp46.59MBb37d6ff53dd47fe3c5d4f54bdc3c96f2.mp47.27MBb303d175402cb42adc001fd432a21f36.mp48.35MB浩瀚的大气197.85MB
0dd4eaeead18175184294cd51f255eb6.mp49.09MB03efd7abbaade3d3bac0885fcb161843.mp45.88MB4e7f7b5e2e28700b1bc9cf256ef89d21.mp45.11MB7b997b5d7bb545ea836c4560a3429659.mp42.89MB7cccf6c512b679e5af9dba85b99faa58.mp46.13MB58e9f03d27cecc13193d0142cc3fbbc5.mp43.86MB89fd4cf69bc126642cf084f7bd816029.mp45.24MB91ccdaefb1fc8ad95fb544c7a2bcfdbd.mp46.67MB151b9d0c273bec330143ff870774028c.mp43.99MB632aa4465eef151576361977254280d8.mp45.76MB778af4a06e90f5c4e4ad31785dfd62e5.mp42.11MB29083fe766f71980ef8e924e70862054.mp44.63MB3343cd7be7e50d9f95ff07c79fa32d4f.mp42.28MBa1c80e3dd8e09fe09db4afc155672a7b.mp44.39MBa3e7b1d88427943d2422668f042d4402.mp43.44MBba848cb0c365a06e2546145ef902bea8.mp42.63MBcc41b66a9b52739a40c8ffd2da4ed870.mp44.53MBcfcb5ca53b9c2c22af47e0e4196734c4.mp41.95MBd2c5b119a76d3d7d70875d59453d20c6.mp43.42MBd9299c92daf783cbc7201b85d03e8e19.mp45.49MBe014cf0aef62abd7fca8d1886242f01f.mp43.94MBfca71fb609394b783c841bbd11bfdc43.mp44.43MB浩瀚的大气267.28MB
7f6c1bbdf2f720099c40afa385bf7f2c.mp48.63MB9f76c1dbcd50b12278ac85eb122cf74a.mp43.91MB98aee8427b5594ea5aa26273264b6ba5.mp45.99MB523a561a29f452bbb1ebce0929108ba1.mp47.8MB612b69904579bc36797919b00db6b896.mp44.66MB31654eba9f378cdd5b4b8494594b5f44.mp412.09MBab21a8c03f7d1745a0c5b79501de49cb.mp42.92MBad241cd4e505d70e10736e9a1e4122c8.mp43.6MBb623481050425f4fddd1ecf8f0cc1c6b.mp47.49MBd08f9f6de973482678625150394cc367.mp46.07MBfa8c241c8bdefb31ef0b8050c76baccc.mp44.11MB化学的魅力142.15MB
0a4e1b311e9a01f17010f31b89f1ae00.mp44.09MB0bc747325a1b406efc01222350593a4d.mp47.06MB0ea1db8c6a55afb3b9f46ab7d2f0e176.mp45.14MB1d52be0d7019898fab3ea5300f20ee6c.mp42.94MB31baac43731e3604e2c310848a2a524f.mp44.8MB38aadb7a0e2e05ad0728669de62ca804.mp44.67MB053f09fbc5d0b20236ab98c32a924fbf.mp46.04MB62e3720ab54227ba8315e521c46bab94.mp46.86MB67b00f3f6b58d7b9ccd9aa950fe14fef.mp45.31MB70f43bdebd18d94a46f6407ce286a106.mp48.03MB87fcb1b240d40d7774195c361ad8208f.mp44.33MB183a88a32b47546aa71c5e178a51bb7b.mp45.84MB636ab9a82e36cc3593b8699f72870e08.mp46.29MB741df97acffce958d7dbaa820759abe2.mp46.79MB804cba42dee55c6112086e3c4af8ceab.mp47.54MB810ff0ee911d3f604871ca366173735a.mp44.37MB159187349840a981d4ce8409c23e0f25.mp412.19MB90599036486edb5d9ddb27b649da2ba6.mp44.46MBb0325ca3d88ea566e5ad329d67479cf2.mp412.17MBc775ce41e2d7bff3a13e38d3d75873e1.mp42.72MBde73c209130903295b03719b6b674397.mp43.37MBecf368f6378e32db5e3c92ab570cc1d8.mp48.91MBfcfe18a80499b87e2c879dc1d668c84f.mp48.24MB化学与生活27.87MB
5afdd4df073ce4560595867d88f9e166.mp47.35MB8c982e3f0ab1c383bfec7581c1746a72.mp45.85MB1489fdce974b562a0126ceefa5d3b7f5.mp44.14MBbd22a9388939eaa840fb515e5464f44b.mp45.44MBf3fa09791d8b2b34261475fcd3ba0d8d.mp45.1MB燃烧及其应用135.23MB
1cc692d647396dbfc1354f91a84be65a.mp48.26MB2bf012808b328d9e10ffce509dcca07a.mp46.8MB2eaa694ff75c035d156b0d0846c095e9.mp46.38MB3b1f007cd8c60ecb1e7dd37c449309e9.mp44.83MB3c50adf6b3c2af37d24ddd9ba7016dc3.mp48.78MB4ab88596e27eea731411484d4a6504b7.mp45.8MB6eb4efea92d4740693a97fc5131ad176.mp47.49MB8e948d1a712f7c14690137fa45d178fa.mp47.02MB56ba0d5ac1d5744f21dd8c09943dbebe.mp45.41MB67bc7edf97876069d408ee87946e0f92.mp46.1MB77f28297fbbe2075723b2bf7d4fe26a2.mp49.06MB260df8a05963491393de71e40227ba6d.mp44.72MB10365ffc00d21e47d8b9ddc387df85bc.mp47.31MB300914289e45fb568a13ad55cfd4c666.mp45.5MB4983cd34703ecad027349e1bcc759f60.mp43.43MBc6258b564f98c541547be86e5031e192.mp49.41MBe24ce2d6a41f7b1a0ac1519568e84b77.mp43.93MBf8c9c5cf3e0d641e76510b5d895b3772.mp46.6MBf752854a58bccc088379b051a2ea8fd2.mp47.47MBf7900685194395f1542e13276bb6633d.mp44.06MBff02cd59118ee609591043bf870cda49.mp46.86MB走进溶液世界121.23MB
1ed2e8d48e41ed74040e4756616b974f.mp46.11MB3ff287cb81bea4678126f1915dae9bc5.mp413.1MB4fa5ec351a589239d49a2b4ddd92c2d9.mp43.99MB6d627f431ce0486e0cc63adcceb16a77.mp48.44MB8c8056e8ae8b3f995f435760461e9c99.mp45.15MB9d0bcbb7e6c105cc9dfca8fe37c4d1db.mp43.14MB018f26bc03419b1b21e4559100eed635.mp47.91MB94c39a78bfa1765ae941d64632a59bc0.mp45.53MB0548c0c731d4d68c5d8f07d025fbcdba.mp47.54MB0719d468e49d1d10891caaa1e2c69acb.mp47.42MB1684e57b304c4f9f553d38c505687b53.mp46.82MB225796885ca9a2c9a8a55c035a8a32a7.mp43.55MBaf19f09662be3ecad0a1080474ff2b91.mp44.11MBb0a85d99449c12962aecd8efd63f511a.mp49.8MBbd75d7322fac4c3e913d62ccdaf9483a.mp45.16MBc88d4a5d870b9e16f76ae540bf5ef1d0.mp46.57MBc439d18f28576fb4136677f0a53cfd53(71).mp47.01MBe349562a4c176a5305aa594582ca7caa.mp42.43MBf0ceaeb062997021874d943f9d3b2e4c.mp47.46MB通用版√1.15GB
01. 化学使世界变得更加绚丽多彩19.03MB
1. 什么是化学.mp48.94MB2. 化学发展史.mp410.09MB02. 走进化学世界96.04MB
1. 化学变化和物理变化.mp47.23MB2. 化学性质和物理性质.mp410.64MB3. 对蜡烛及其燃烧的探究.mp45.28MB4. 对人体吸入的空气和呼出的气体的探究.mp48.57MB5. 简单仪器.mp47.41MB6. 药品的取用.mp418.98MB7. 天平的使用.mp46.5MB8. 量筒的使用.mp46.13MB9. 酒精灯的使用.mp414.09MB10. 连接仪器装置.mp47.99MB11. 玻璃仪器洗干净的标准.mp43.22MB03. 我们周围的空气30.66MB
1. 空气中氧气含量的测定实验.mp411.16MB2. 空气成分.mp44.86MB3. 纯净物混合物的分类.mp45.26MB4. 空气中氮气和稀有气体的用途.mp44.73MB5. 空气污染及防治.mp44.64MB04. 氧气59.24MB
1. 氧气的物理性质.mp43.12MB2. 木炭燃烧.mp43.88MB3. 硫燃烧.mp42.95MB4. 铁燃烧.mp46.7MB5. 氧气的化学性质和用途.mp43.27MB6. 氧化反应.mp42.16MB7. 化合反应与氧化反应.mp45.21MB8. 加热高锰酸钾制氧气.mp47.28MB9. 过氧化氢溶液制氧气.mp44.66MB10. 氧气的收集、验满与检验.mp44.01MB11. 气体制取装置的选择.mp44.77MB12. 催化剂.mp46.34MB13. 分解反应.mp42.37MB14. 氧气的工业制法.mp42.51MB05. 物质构成的奥秘97.55MB
1. 物质的构成及分子的特征.mp47.01MB2. 探究分子运动实验.mp47.6MB3. 分子.mp45.29MB4. 用分子的观点解释物质的组成.mp44.91MB5. 用分子的观点解释物质的变化.mp43.73MB6. 分子与原子的区别与联系.mp47.11MB8. 原子的构成.mp45.12MB9. 原子核外电子的排布.mp45.57MB10. 原子结构示意图.mp45.94MB11. 原子结构与原子化学性质的关系.mp46.5MB12. 离子的定义及分类.mp43.89MB13. 离子符号的写法与意义.mp45.95MB14. 相对原子质量.mp44MB15. 相对原子质量、质子数、中子数之间的关系.mp45.06MB16. 元素的定义.mp45.37MB17. 地壳中元素的含量.mp43.21MB18. 元素符号的写法及意义.mp45.66MB19. 元素周期表简介及元素周期表提供的信息.mp45.64MB06. 自然界的水67.09MB
1. 爱护水资源.mp45.44MB2. 自来水净化.mp43.16MB3. 过滤.mp45.19MB4. 硬水和软水.mp43.89MB5. 氢气的性质与检验.mp44.17MB6. 水的组成实验.mp43.56MB7. 纯净物的分类――单质、化合物、氧化物.mp44.75MB9. 化学式的意义.mp44.56MB10. 化学式的读写.mp44.19MB11. 化合价.mp45.05MB12. 化合价的应用.mp45.69MB13. 原子团.mp410.13MB14. 化学符号及周边数字的意义.mp43.89MB15. 有关相对分子质量的计算.mp43.42MB07. 化学方程式88.52MB
1. 化学反应前后物质的质量关系的实验探究.mp414.67MB2. 质量守恒定律.mp49.17MB3. 实验探究质量守恒定律时应注意的问题.mp47.18MB4. 质量守恒定律的微观解释.mp48.98MB5. 质量守恒定律的相关计算.mp49MB6. 化学方程式.mp49.8MB7. 化学方程式的书写原则与步骤.mp410.66MB8. 化学方程式的配平方法.mp413.21MB9. 化学方程式的简单计算.mp45.85MB08. 碳和碳的氧化物92.54MB
1. 碳的几种单质.mp48.95MB2. 常温下化学性质稳定.mp43.37MB3. 碳与氧气的反应——可燃性.mp48.9MB4. 碳与某些氧化物的反应——还原性.mp45.95MB5. 二氧化碳的实验室制法.mp48.18MB6. 二氧化碳的实验室制法原料的选择.mp46.54MB7. 二氧化碳的物理性质.mp47.96MB8. 二氧化碳的化学性质--与水的反应.mp46.19MB9. 二氧化碳的化学性质--与澄清石灰水的反应.mp45.59MB10. 二氧化碳的用途及危害.mp49.14MB11. 一氧化碳的物理性质和毒性.mp47.72MB12. 一氧化碳的化学性质--可燃性.mp44.26MB13. 一氧化碳的化学性质--还原性.mp45.19MB14. 碳及其化合物的相互转化关系.mp44.58MB09. 燃料及其利用91.11MB
1. 燃烧和燃烧的条件.mp49.78MB2. 探究燃烧的条件.mp48.84MB3. 灭火的原理和方法.mp410.08MB4. 灭火器.mp49.7MB5. 易燃物和易爆物的安全知识.mp410.66MB6. 化学反应中的能量变化.mp46.78MB7. 煤和石油.mp47.1MB8. 天然气.mp46.84MB9. 合理利用与开发化石能源.mp46.91MB10. 使用燃料对环境的影响.mp47.61MB11. 能源的利用与开发.mp46.81MB10. 金属和金属材料137.9MB
1. 几种重要的金属.mp413.55MB2. 合金.mp411.93MB3. 金属与氧气的反应.mp49.28MB4. 探究金属与盐酸、稀硫酸的反应.mp411.86MB5. 金属与盐酸、稀硫酸的反应.mp48.28MB6. 金属与酸反应-图象问题（一）.mp48.57MB7. 金属与酸反应-图象问题（二）.mp46.45MB8. 金属与酸反应-天平问题.mp48.17MB9. 金属与酸反应-混合物计算.mp45.86MB10. 置换反应.mp45.33MB11. 探究金属活动性顺序.mp47.7MB12. 金属活动性顺序及其应用.mp48.78MB13. 选择试剂验证金属的活动性顺序.mp48.21MB14. 金属质量变化的判断.mp46.52MB15. 滤液与滤渣.mp49.95MB16. 金属流程.mp47.45MB11. 金属资源的利用和保护39.25MB
1. 金属在自然界中的存在.mp46.89MB2. 工业炼铁.mp46.82MB3. 一氧化碳还原氧化铁实验.mp48.17MB4. 铁生锈条件的探究.mp48.46MB5. 金属资源保护.mp48.91MB12. 溶液154.45MB
1. 溶液的形成、概念及特征.mp411.85MB2. 溶液的组成、命名及用途.mp48.59MB3. 溶解时的吸热或放热现象.mp49.17MB4. 乳化现象.mp411.52MB5. 饱和溶液和不饱和溶液.mp410.77MB6. 饱和溶液、不饱和溶液与浓溶液、稀溶液之间的关系.mp48.18MB7. 结晶.mp46.02MB8. 固体溶解度.mp415.72MB9. 固体溶解度的表示方法.mp49.7MB10. 固体溶解度曲线的应用.mp49.29MB11. 气体溶解度.mp47.35MB13. 溶质的质量分数.mp46.5MB14. 溶质质量分数和溶解度的区别和联系.mp410.15MB15. 溶液计算―直接计算.mp48.32MB16. 溶液计算―稀释、浓缩问题.mp45.07MB17. 溶液计算―与化学方程式的相关计算.mp47.85MB18. 溶液的配制.mp48.41MB13. 酸和碱102.58MB
1. 酸、碱与指示剂作用.mp47.25MB2. 几种常见的酸.mp45.19MB3. 浓硫酸的腐蚀性.mp410.13MB4. 浓硫酸的稀释.mp43.51MB5. 酸的化学性质.mp45.44MB6. 酸与金属氧化物的应用.mp44.71MB7. 几种常见的碱--氢氧化钠.mp46.46MB8. 几种常见的碱--氢氧化钙.mp44.83MB9. 碱的化学性质.mp43.54MB10. 酸、碱分别具有相似化学性质的原因.mp44.55MB12. 中和反应.mp411.29MB13. 中和反应在实际中的应用.mp46.21MB14. 溶液酸碱度的表示法-pH.mp48.84MB15. 中和反应的验证.mp412.19MB16. 溶液pH变化问题.mp48.45MB14. 盐、化肥64.24MB
1. 氯化钠.mp49.3MB2. 粗盐提纯.mp48.62MB3. 碳酸钙.mp44.6MB4. 碳酸钠.mp47.13MB5. 碳酸氢钠.mp44.96MB6. 碳酸根离子的检验.mp45.24MB7. 复分解反应.mp47.24MB9. 常见化肥的种类和作用.mp46.88MB10. 化肥的简易鉴别.mp45.8MB11. 氮肥的简单鉴别.mp44.48MB15. 化学与生活37.75MB
1. 蛋白质.mp44.62MB2. 糖类.mp46.82MB3. 油脂和维生素.mp46.28MB4. 化学元素与人体健康.mp45.59MB5. 有机化合物.mp45.88MB6. 有机合成材料.mp48.56MB粤教版850.26MB
常见的酸碱盐124.8MB
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0ea1db8c6a55afb3b9f46ab7d2f0e176.mp45.14MB70f43bdebd18d94a46f6407ce286a106.mp48.03MB183a88a32b47546aa71c5e178a51bb7b.mp45.84MB636ab9a82e36cc3593b8699f72870e08.mp46.29MB741df97acffce958d7dbaa820759abe2.mp46.79MB159187349840a981d4ce8409c23e0f25.mp412.19MBb0325ca3d88ea566e5ad329d67479cf2.mp412.17MBc775ce41e2d7bff3a13e38d3d75873e1.mp42.72MBecf368f6378e32db5e3c92ab570cc1d8.mp48.91MB金属130.45MB
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七年级79.25MB
科学入门40.05MB
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空气和生命172.11MB
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可持续发展17.69MB
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