Question

Balance the following and identify the type of reaction:

NaCl + BeF₂ -> NaF + BeCl₂

CH4 + O2 --> CO2 + H2O

Mg + Mn2O3 --> MgO + Mn

Fe + H₂O → Fe3O4 + H₂

HgO —> Hg + O₂

Fe + CuCl2 > FeCl₂ + Cu

H₂+ N₂ > NH3

Na+ Br₂ → NaBr

Answer 1

Here are the balanced equations and the types of reactions:

1. 2NaCl + BeF₂ -> 2NaF + BeCl₂

- This is a double displacement reaction.

2. CH4 + 2O2 --> CO2 + 2H2O

- This is a combustion reaction.

3. 3Mg + Mn2O3 --> 3MgO + 2Mn

- This is a displacement reaction.

4. 3Fe + 4H₂O → Fe3O4 + 4H₂

- This is a displacement reaction.

5. 2HgO —> 2Hg + O₂

- This is a decomposition reaction.

6. Fe + CuCl2 > FeCl₂ + Cu

- This is a displacement reaction.

7. 3H₂+ N₂ > 2NH3

- This is a synthesis reaction.

8. 2Na+ Br₂ → 2NaBr

- This is a synthesis reaction.