Give the names of the elements present in the following compounds.

(a) Quick lime: The compound for quick lime is Calcium oxide (CaO). The elements present in quick lime are:
– Calcium (Ca)
– Oxygen (O)

(b) Hydrogen bromide: The compound for hydrogen bromide is Hydrobromic acid (HBr). The elements present in hydrogen bromide are:
– Hydrogen (H)
– Bromine (Br)

(c) Baking powder: Baking powder is a mixture that often contains compounds like sodium bicarbonate (NaHCO3) and an acid, such as cream of tartar (potassium hydrogen tartrate -KHC4H4O6). The elements present in baking powder can include:
– Sodium (Na)
– Hydrogen (H)
– Carbon (C)
– Oxygen (O)
– Potassium (K)
– Tartaric acid: Carbon (C), Hydrogen (H), Oxygen (O)

(d) Potassium sulphate: The compound for potassium sulphate is (K2SO4). The elements present in potassium sulphate are:
– Potassium (K)
– Sulfur (S)
– Oxygen (O)