Question

Giving an example list two information which make a chemical equation more useful (informative).

Answer 1

Just the chemical equation lacks to provide much information like state of reactants and products, involvement of heat during reaction etc.To overcome this we add notations like delta to indicate the involvement of heat, mention the state in parenthesis beside the reactants and products, putting up / down arrow to denote evolve gas / precipitation. e.g. C (s) + O2 (g) = CO2 (g) ↑ + Δ

Answer 2

Answer:

1)Physical state of the reactants and products makes the equation more useful.

2)The condition in which the reaction takes place which is given on the arrow head also makes the equation more informative.

Explanation: