* Exothermic Reaction: The reaction between zinc and hydrochloric acid is an exothermic reaction. This means it releases heat energy into the surroundings.
* Chemical Equation: The reaction can be represented by the following equation:
Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)
* Energy Release: The breaking of bonds in the reactants (Zn and HCl) requires energy, but the formation of new bonds in the products (ZnCl₂ and H₂) releases more energy. This difference in energy is released as heat, causing the temperature to rise.
In short, the reaction is exothermic, meaning it releases heat, which increases the temperature of the solution.
