Question

State four differences between compounds and mixtures.

Answer 1

Compound 

1. A compound is formed from its constituent elements as a result of chemical reaction.
2. A compound is always homogeneous in nature.
3. In a compound the elements are present in a fixed ratio by weight.
4. The components of a compound can’t be separated by physical methods but can be separated by chemical methods only.
5. The properties of a compound are different from those of its elements.
6. The formation of a compound from its elements is accompanied by energy changes.

Mixture

1. A mixture is obtained form its (elements, compounds) components as a result of physical change.
2. The mixtures can be homogeneous or heterogeneous.
3. In a mixture the components can be present in any ratio.
4. The components of a mixture can be separated by physical methods only.
5. The properties of a mixture lie between those of-its components.
6. The formation of a mixture from its constituents is not accompanied by energy changes.