Give the names of the elements present in the following
compounds.
(a) Quick lime
(b) Hydrogen bromide
(c) Baking powder
(d) Potassium sulphate.
Answer
(a) Quick lime
CaO (Calcium Oxide) is known as quick lime.
CaO has the following elements:
- Calcium (Ca)
- Oxygen (O)
(b) Hydrogen bromide
HBr (Hydrogen Bromide) has the following elements:
- Hydrogen (H)
- Bromine (Br)
(c) Baking powder
NaHCO 3 (Sodium Hydrogencarbonate) is known as baking powder
NaHCO 3 has the following elements:
- Sodium (Na)
- Hydrogen (H)
- Carbon (C)
- Oxygen (O)
(d) Potassium Sulphate
K 2 SO 4 (Potassium Sulphate) has the following elements:
- Potassium (K)
- Sulphur (S)
- Oxygen (O)
