54. Write the chemical formulae of the following. (a) Magnesium chloride (b) Calcium oxide (c) Copper nitrate (d) Aluminium chloride (e) Calcium carbonate.

54. Write the chemical formulae of the following. (a) Magnesium chlori

1.	54. Write the chemical formulae of the following. (a) Magnesium chloride (b) Calcium oxide (c) Copper nitrate (d) Aluminium chloride (e) Calcium carbonate.
Answer» (a). mgcl2(b).cao(C).cu(no3)2(d).Alcl3(E).CACO3