Question

aj Differentiate between the following
and give examples
il physical and chemical ichanges
ii) Reversible and beste geversible changes​

Answer 1

Explanation:

physical change is a temporary and reversible change in which the physical properties of the substance changes without altering the composition of the substance.

A chemical change is a permanent, not easily reversible change in which the identity of the substance is altered to produce one or more new substances.

Reversible changes - where a change is made physically and can be undone or reversed. For example: freezing water to make ice.

Irreversible changes - where the change is made chemically and can't be reversed into its original states. For example: baking a cake.