Chemistry plz help

Question

HCl(aq)+NaOH(aq)→NaCl(aq)+H2O(l)

A student had two dilute, colorless solutions, HCl(aq)and NaOH(aq), which were at the same temperature. The student combined the solutions, and the reaction represented above occurred. Which of the following results would be evidence that a chemical reaction took place?

A. The resulting solution is colorless.

B The temperature of the reaction mixture increases.

C The total volume of the mixture is approximately equal to the sum of the initial volumes.

D The resulting solution conducts electricity.

Answer 1

The answer is B. The reaction of a strong acid with a strong base is exothermic and would raise the temperature of the mixture.