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 hi​

Answer 1

1. Zn + 2HCl ----> ZnCl2

+ H2

2. 3Mg + N2 ----> Mg3N2

3. H2+Cl2 ----> 2HCl

4. N2 +3H2 ---->2NH3

5. 2NaNO3 ----> 2NaNO2 + O2

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Answer 2

Explanation:

1. 2Zn +2HCl2 gives 2ZnCl2 + H2

2. 3Mg + N2 gives Mg3N2

3. H2 + Cl2 gives 2HCl

4. N2 + 3H2 gives 2NH3

5. 2 NaNO3 gives 3NaNO2 + O2 hi