Gerald's science teacher mixed room temperature samples of hydrochloric acid and sodium hydroxide in a large beaker. The solutio
n still looked clear like water, but when the students carefully touched the beaker one at a time, it felt warm to the touch. Why did the beaker most likely feel warm?
<h2>The answer is A chemical reaction was producing a new substance.</h2><h2 />
Explanation- Heat is one sign that a chemical reaction is occurring. A chemical reaction produces new substances that are different from the original substances.
Hydrochloric acid is a strong acid which reacts with the strong base sodium hydroxide to produce salt, water, and heat.
The reaction of hydrochloric acid and sodium hydroxide is a neutralization reaction wherein a mixture of acid and base produces salt, water, and energy in the form of heat. A neutralization reaction is exothermic, thus producing heat. This is why the beaker felt warm to the touch.
