中考置换反应化学式总结
2018-01-01安全生产
中考置换反应化学式总结 金属单质 + 酸 ---盐 + 氢气 1、锌和稀硫酸反应：Zn + H2SO4 === ZnSO4 + H2↑ 2、镁和稀硫酸反应：Mg + H2SO4 === MgSO4 + H2↑ 3、铝和稀硫酸反应：2Al + 3H2SO4 === Al2(SO
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