Question

write balanced chemical equation for the following reactions:
Magnesium hydroxide reacts with sulphuric acid.
Nitrogen gas combines with hydrogen gas
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Answer 1

1) Mg(OH)2 + H2SO4 → MgSO4 + 2H2O.

L.H.S. R.H.S.

Mg = 1. Mg = 1.

O = 1×2 = 2. O = 4.

H = 1×2 = 2. S = 1.

H = 2. H = 2×2 = 4.

S = 1. O = 1×2 = 2.

O = 4.

Hence, it is Balanced...

2) N2 + 3H2 → 2NH3.

L.H.S. R.H.S.

N = 2. N = 2.

H = 2×3 = 6. H = 3×2 = 6.

Hence, it is Balanced...