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HCl(aq)+NaOH(aq) → NaCl(aq)+H2O)
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?
The resulting solution is colorless.
The total volume of the mixture is approximately equal to the sum of the initial volumes.
The temperature of the reaction mixture increases.
The resulting solution conducts electricity.

Respuesta :

quasarJose

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.

The branch of science which deals with the study of chemicals is called chemistry.

According to the question, we have to find the solution of subparts of the question, the answer is option C.

The reaction mentioned in the question is the neutralization reaction, In which acid and base react with each other to form a neutral compound called salt.

Here, salt is NaOH, the chemical reaction is confirmed by the changes in the odor and the rise in temperature as the reaction is an exothermic reaction.

Hence, the correct option is C that is the temperature of the reaction mixture increases.

For more information, refer to the link:-

https://brainly.com/question/25026730

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