Explanation:
Matter is generally classified as either pure or impure substances.
Pure substances are distinct substances with the following characteristics;
- All parts are the same throughout which implies that they are homogenous
- Their composition is definite
- They cannot be easily separated or broken into simpler units by physical means.
- Separation by physical methods is not easy.
- They have a unique set of physical properties.
- These substances are elements and compounds.
Any substance that is an element or a compound is pure substance.
