Question

a large change in temperature (not resulting from external heating) with the appearance of gas bubbles is most likely an indication of: select the correct answer below: a chemical change only physical changes occurring molecules are undergoing physical changes none of the above

Explanation:

A large - scale temperature change not due to external heating and the appearance of gas bubbles are characteristic signs of a chemical reaction. In a chemical change, new substances are formed, and energy changes (such as temperature changes) and gas evolution can occur. Physical changes typically do not involve such significant, spontaneous temperature changes and gas formation without external heating.

Answer:

a chemical change