过量硝酸:先中和反应,再氧化反应.总反应式如下:
3Fe(OH)2 + 10HNO3 = 3Fe(NO3)3 + NO ↑+ 8H2O
少量硝酸:只发生中和反应.反应式如下:
Fe(OH)2 + 2HNO3 =Fe(NO3)2 +2H2O
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