HBr(aq) and Ca(OH)2(aq) Express your answer as a balanced chemical equation. Identify all of the phases in your answer.

2 HBr (aq) + Ca(OH)2 (s) → CaBr2 (aq) + 2 H2O (l)

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

the volume increases