Question

define the characteristics of chemical equation ​

Answer 1

A chemical equation consists of the chemical formulas of the reactants (on the left) and the products (on the right). The two are separated by an arrow symbol (“→” usually read aloud as “yields”). Each individual substance's chemical formula is separated from others by a plus sign.

Answer 2

Explanation:

1)Evolution of gas. Some chemical reactions are characterised by the evolution of gas.

2)Formation of precipitate. Some chemical reactions are characterised by the formation of precipitate.

3)Change in colour. Some chemical reactions are characterised by change in colour.

4)Change in temperature.

5)Change of state.