State five properties of mixtures.

State the properties of compounds.

Is air a mixture or a compound ? Give three reasons.

Give two reasons to support that water is a compound and not a mixture.

'Compounds are homogeneous but mixture may be homogeneous or heterogeneous'. Explain this statement with example.

Explain why, a solution of salt in water is considered as a mixture and not compound?

Classify the following into elements, compounds and mixtures

air, gold, diamond, marble, comman salt, chalk, sea water, petroleum, sand, brass.