化學: metal and acid的reaction

KIT

2010-03-07 9:01 pm

reaction of nitric acid with metal hydrogencarbonate
1)potassium hydrogencarbonate
2)sodium hydrogencarbonate
3)calcium hydrogencarbonate
4)magnesium hydrogencarbonate
5)aluminium hydrogencarbonate
6)zinc hydrogencarbonate
7)iron hydrogencarbonate

要chemical equation唔該哂~

回答 (1)

Man On

2010-03-07 9:23 pm

✔ 最佳答案

1) HNO3 + KHCO3 --> KNO3 + CO2 + H2O
2) HNO3 + NaHCO3 --> NaNO3 + CO2 + H2O
3) 2HNO3 + Ca(HCO3)2 --> Ca(NO3)2 + 2CO2 + 2H2O
4) 2HNO3 + Mg(HCO3)2 --> Mg(NO3)2 + 2CO2 + 2H2O
5) 3HNO3 + Al(HCO3)3 --> Al(NO3)3 + 3CO2 + 3H2O
6) 2HNO3 + Zn(HCO3)2 --> Zn(NO3)2 + 2CO2 + 2H2O
7)
(i) For iron(II)：
2HNO3 + Fe(HCO3)2 --> Fe(NO3)2 + 2CO2 + 2H2O
(i) For iron(III)：
3HNO3 + Fe(HCO3)3 --> Fe(NO3)3 + 3CO2 + 3H2O

When nitric aicd reacts with hydrogencarbonate or carbonate, it performs as an acid providing H+. If nitric acid reacts with metal, it performs as an oxidizing agent.

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