\* MERGEFORMAT 9 研究物质性质的程序和方法____________________________________________________________________________________________________________________________________________________________________1.使学
\* MERGEFORMAT 9 研究物质性质的程序和方法____________________________________________________________________________________________________________________________________________________________________1.使学
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\* MERGEFORMAT 13 研究物质的实验方法____________________________________________________________________________________________________________________________________________________________________1.掌握物质
\* MERGEFORMAT 8 走进化学科学____________________________________________________________________________________________________________________________________________________________________1.使学生知道化学是
--利用有关燃料的性质制成火箭推进剂分类比较法观察钠(sodium)的物理性质:密度小比水轻 实地检验验证为了检验某种科学理论或假设而进行某种操作或从事某种活动例如金属钠的性质研究:22Na2H2O2NaOHH2↑钠在空气中放置(2).与水反应(4)制难熔金属(钾钛铌锆等)练习1:
\* MERGEFORMAT 7 复合材料____________________________________________________________________________________________________________________________________________________________________1.了解复合材料的形成和
\* MERGEFORMAT 8 走进化学科学____________________________________________________________________________________________________________________________________________________________________1.使学生知道化学是
2Na2H2O=2NaOHH2↑虽都是金属单质但物理性质有较大差别氧化合价淡黄色固体
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