(1)铁能与稀硫酸反应生成氢气,该反应的化学方程式为       

1)铁能与稀硫酸反应生成氢气,该反应的化学方程式为                

2实验室分解过氧化氢溶液制氧气时,通常加入少量MnO2粉末作       剂,反应前后MnO2的质量和               都没有发生变化。

答案

1 Fe + H2SO4 FeSO4 + H2↑  2)催化  化学性质(仅写“性质”不给分)

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