Question

Identify the pure substances from the following:

Ice, Milk, Iron, Air​

Answer 1

Ice, iron, calcium oxide and mercury are pure substances since they contain particles of only one kind of matter. In contrast, milk, hydrochloric acid (hydrogen chloride gas dissolved in water), brick and air cannot be called pure substances because they consists of particles of more than one kind of matter.

Answer 2

Answer:

Ice is the pure substance.

Explanation:

Ice is the pure substance as others are formed of different substances.