Question

Is the reaction btwnzinc andHCl an endothermic or an exothermic reaction?

Answer 1

this is a neutralisation reaction and when you learn about enthalpies, you learn that the enthalpies of combustion and neutralisation are always negative. This indicates that they lose energy, meaning they give it out i.e they are exothermic. 

Neutralisation reactions are exothermic not endothermic.