Question

Give the formulae of the compounds formed from the following sets of elements

(a) Calcium and fluorine

(b) Hydrogen and Sulphur

(c) Nitrogen and hydrogen

(d) Carbon and chlorine

(e) Sodium and oxygen

(f) Carbon and oxygen

Answer 1

(a) Calcium and fluoride

Calcium Fluoride (CaF₂)

(b) Hydrogen and Sulphur

Hydrogen Sulphide (H₂S)

(c) Nitrogen and hydrogen

Ammonia (NH₃)

(d) Carbon and chlorine

Carbon Tetrachloride (CCl₄)

(e) Sodium and oxygen

Sodium Oxide (Na₂O)

(f) Carbon and oxygen

Carbon-di-oxide(CO₂), Carbon Monoxide (CO)