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九年级化学第四单元考点复习

  • 2026-10-25 06:05:25

九年级化学第四单元考点复习

1.水的净化与保护；
2.氢气的物理性质、验纯、化学性质；
3.电解水实验；
4.物质的分类；
5.化学式的意义；
6.元素符号周围数字的含义；
7.化合价与化学式；
8.根据化学式的计算。
#九年级化学#化学教学与实践

甘肃,24分钟前,
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26秋人教版【1-6年级上册数学】期中复习计算专题!全是必考题型,考前练透!

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0.090020s