Question

Give the names of the elements present in the following compounds.
a) Quick lime
b) Baking powder
c) Potassium sulphate
[3 Marks]

Answer 1

a) Quick lime
Formula: CaO
Elements: Calcium(Ca) and oxygen(O).
[1 Mark]
b) Baking powder
Formula: $NaHC{O}_3$
Elements: Sodium(Na), hydrogen(H), carbon(C) and oxygen(O).
[1 Mark]
c) Potassium sulphate
Formula: $K_{2}S{O}_4$
Elements: Potassium(K), sulphur(S) and oxygen(O).
[1 Mark]