Answer:
The solvent is the substance that dissolves solutes.
Explanation:
Solutes are the ones being dissolved. Examples could be sugar, salt, etc.
Solvents are the dissolver. Examples could be acids like HCl or water.
Chemical change creates a new substance
The reaction is an exothermic one because heat is released to the surroundings. An exothermic reaction is a chemical reaction where energy is being released as the reaction by light or heat. On the other hand, endothermic reaction needs energy input for the reaction to proceed.