Write down the formulae for the following compounds :
(a) Calcium oxide
(b) Magnesium hydroxide

Write the chemical formula of the following compounds

(a) Calcium oxide (b) Calcium Hydroxide (c) Aluminium Sulphate

Write down the formulae of the following compounds:

(i) Potassium oxide

(ii) Aluminium Nitride

(iii) Hydrogen sulfide

(iv) Calcium hydroxide

Write down the formulae of

(i) sodium oxide

(ii) aluminium chloride

(iii) sodium sulphide

(iv) magnesium hydroxide

Write the chemical formula and name the elements present in the following compounds.

a. Sodium chloride

b. Potassium hydroxide

c. Carbon dioxide

d. Calcium oxide

e. Sulphur dioxide