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1 重要的置换反应分析1)同主族元素间的置换如: 2Na+2H2O=2NaOH+H2↑, 2C+SiO2=高温Si+2CO↑, 2H2S+O2=2S↓+2H2O.2)不同主族元素间的置换反应如:
1 Analysis of important substitution reactions 1) Substitutions between elements of the same main group such as: 2Na+2H2O=2NaOH+H2↑, 2C+SiO2=high temperature Si+2CO↑, 2H2S+O2=2S↓+2H2O.2) Different main groups Replacement reactions between elements such as: