Question

in writing thermochemical equations,why is it important to indicate the physical state (that is, gaseous, liquid,solid,or aqueous) of each substance?​

Answer 1

Answer:

It is important to include the physical states of the reactants and products in a thermochemical equation, because the value of ΔH depends on those states. Endothermic reactions absorb energy from the surroundings as the reaction occurs. When heat is absorbed during a reaction, it can be written as a reactant.

Explanation: