Question

What are three ways you can personally be more energy efficient and sustainable?

Answer 1

SOLUTION

The various ways in which a chemical equation can be made more informative are:

(i) By indicating the physical states of the reactants and products. Example: Gaseous state is indicated by the symbol (g).

(ii) By indicating the heat changes taking place in the reaction. For example: An exothermic reaction is indicated by writing "Heat" or "Heat energy" or "Energy" on the products side of an equation.