Question

HCl(aq)+NaOH(aq) → NaCl(aq)+H2O)

Answer 1

Answer:

The temperature of the reaction mixture increases.

Explanation:

One very good indicator that a chemical reaction has taken place is that there is a temperature change about the reaction.

Either an emission of heat involving the reaction milieu becoming hotter or an absorption of heat making the environment colder.

• Enthalpy changes of reactions are good parameters to measure whether or not a reaction has taken place.
• There is no color change, and mass is always conserved for most reaction, so we cannot use these tools for assessing whether a reaction has occurred or not.