用质量守恒定律分析以下变化 1)木炭燃烧后生成的灰比原来木炭的质量减小了 2)铁定生锈后质量增加了
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![用质量守恒定律分析以下变化 1)木炭燃烧后生成的灰比原来木炭的质量减小了 2)铁定生锈后质量增加了](/uploads/image/z/1461036-12-6.jpg?t=%E7%94%A8%E8%B4%A8%E9%87%8F%E5%AE%88%E6%81%92%E5%AE%9A%E5%BE%8B%E5%88%86%E6%9E%90%E4%BB%A5%E4%B8%8B%E5%8F%98%E5%8C%96+1%29%E6%9C%A8%E7%82%AD%E7%87%83%E7%83%A7%E5%90%8E%E7%94%9F%E6%88%90%E7%9A%84%E7%81%B0%E6%AF%94%E5%8E%9F%E6%9D%A5%E6%9C%A8%E7%82%AD%E7%9A%84%E8%B4%A8%E9%87%8F%E5%87%8F%E5%B0%8F%E4%BA%86+2%EF%BC%89%E9%93%81%E5%AE%9A%E7%94%9F%E9%94%88%E5%90%8E%E8%B4%A8%E9%87%8F%E5%A2%9E%E5%8A%A0%E4%BA%86)
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