Question

Differentiate between compounds and mixtures.(5 points )

Answer 1

BASIS FOR COMPARISON COMPOUND MIXTURE

Meaning	Compound refers to a substance formed by combining two or more elements chemically.	Mixture implies the intermingling of two or more substances into one physically.
Nature	Homogeneous	Homogeneous or Heterogeneous
Composition	Fixed	Variable
Substance	Pure	Impure
Properties	Constituents lose their original property.	Constituents keep their original property.
New substance	New substance is formed.	No new substance is formed.
Separation	By chemical or electro-chemical methods.	By physical methods.
Melting and boiling point	Defined	Not defined

Examples

Air, sea water, most rocks.

Water, carbon dioxide, magnesium oxide, sodium chloride.