Question

Balance the following chemical reactions : 5

1. Zn + HCl  ZnCl2

+ H2

2. Mg + N2  Mg3N2

3. H2+Cl2  HCl

4. N2 +H2 NH3

5. NaNO3  NaNO2 + O2 ​

Answer 1

Answer:

• Zn + HCl = ZnCl2 +H2

=> Zn + 2HCl = ZnCl2 + H2

• Mg + N2 = Mg3N2

=> 3Mg + N2 = Mg3N2

• H2+Cl2 = HCl

=> H2 + Cl2 = 2HCl

• N2 + H2 = NH3

=> 3N2 + 3H2 = 2NH3

• NaNO3 = NaNO2 + O2

=> 2NaNO3 = 2NaNO2 + O

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