Question

How would you distinguish between a physical property and a chemical property, giving an example of each?

Answer 1

A physical change is typically a change of state............

Explanation:

A physical change is typically a change of state, for example, solid to liquid, liquid to gas, etc. Boiling water to give steam is an example of a physical change; so is the melting of ice.

On the other hand, chemical change involves the making and breaking of strong chemical bonds, and the formation of new substances. The combustion of petrol to give carbon dioxide and water (and heat) is certainly an example of chemical change:

`C_6H_14(l) + 19/2O_2(g) rarr 6CO_2(g) + 7H_2O(l) + Delta`