Question

Balance the following chemical equations and explain it.
1. N² + H² → NH
2. CaCO³ +HCl → CaCl² + CO² +H²O 3. Pb(NO³)² + PbO + NO² + O²​

Answer 1

Answer:

ANSWER :-

1. N2 + 3H2 → 2 NH3

2. CaCO3 + HCl  → CaCl2 + H2O + CO2 

3. 2Pb(NO3)2 → 2PBO + 4NO2 + O2

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Answer 2

Explanation:

This reaction is the synthesis of Ammonia using Nitrogen and Hydrogen gas.

N+H→NH3

We must remember that Nitrogen and Hydrogen are both diatomic molecules in their standard gas form. This adjusts the equation to

N2+H2→NH3

Now we need to adjust coefficients in order to balance the atoms on each side of the equation. Currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

We can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

N2+3H2→2NH3

This gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.