Question

Classify each of the following as a physical or a chemical

property. Give reasons for your answer.
(a) metallic lustre
(b) boiling point
(c) explodes when ignited
(d) changes colour when mixed with water

Answer 1

a,b,d: physical property

c: chemical property

Step-by-step explanation:

(a) Metallic lustre is classified as a physical property because the metallic substance is not being changed

(b) Boiling point is classified as a physical property because in boiling point composition of matter is not changed.

(c) explodes when ignited: This one is classified as a chemical property because it does not remain the same substance when something is exploding. It changes.

(d) changes colour when mixed with water: this one is classified as a physical property as the substance remains the same as the physical properties does not change when it is mixed with water.