Question

formulas in is matter pure ​

Answer 1

Explanation:

elements is substances that consists of only one type or kind of atom

Answer 2

Answer:

Compounds

Compound is a pure substance made up of two or more elements combined chemically in a definite ratio.

Characteristics:

1. The properties of compound differ from those of its constituents.

2. Compound has fixed melting point and boiling point.

3. Compound is a homogeneous substance.

4. Constituent elements can be separated by chemical process.

• Mixtures

It is made up of two or more elements or compounds mixed in any ratio/proportion.

Properties:

• It may be homogeneous of heterogeneous.

• The properties of constituent substances are retained.

• No new compound is formed.

• Elements can be separated by simple physical processes.

• It does not have fixed melting and boiling point.