Write the chemical formulae of the following compounds-1. Common salt.2. Copper sulphate.3. Hydrochloric acid.4. Nitric acid.5. Sodium carbonate.6. Nitrogen dioxide.

The chemical formulae of the following compounds are as follows:-

1. Common salt: NaCl

2. Copper sulphate: CuSO₄

3. Hydrochloric acid: HCl

4. Nitric acid: HNO₄

5. Sodium carbonate: Na₂CO₃

6. Nitrogen dioxide: NO₂