Question

Write and balance the following equations:
1. Nitric acid reacts with calcium hydroxide and forms calcium nitrate and water.

2. Sodium bicarbonate decompose
to give sodium carbonate, carbon dioxide and water.

3.sodium chloride reacts with water to give sodium hydroxide, hydrogen gas and chlorine molecule.

4. Aluminummetal reacts with sulphuric acid to give aluminum sulphate and hydrogen gas.

5.Phosphorous pentoxide reacts with water to give phosphoric acid.

Answer 1

1) Nitric acid reacts with calcium hydroxide and forms calcium nitrate and water.
2HNO3 + Ca(OH)2 → Ca(NO3)2 + 2H2O


2) Sodium bicarbonate decomposes to give sodium carbonate, carbon di oxide and water.
2NaHCO3 → Na2CO3 + CO2 + H2O


3) Sodium chloride reacts with water to give aluminium sulphate and hydrogen gas.Given reaction is wrong (not possible). Actual reaction will beNaCl + H2O → NaOH + HCl (these products are unstable and reaction proceeds towards otherside

4) Aluminum metals reacts with Sulphuric acid to give Aluminium sulphate and hydrogen gas.
2Al + 3H2SO4 → Al2(SO4)3 + 3H2



5 ) Phosphorus pentoxide reacts with water to give phosphoric acid.
P2O5 + 3H2O → 2H3PO4


Hope it helps ya!