Question

question 1 10 pts which of the following is not a sign of a chemical reaction? a clear liquid mixture turns cloudy. a reaction mixture changes color from purple to yellow. a liquid mixture turns into a solid after water evaporates from it. a reaction mixture fizzes or bubbles.

Explanation:

A chemical reaction involves the formation of new substances. A clear liquid mixture turning cloudy, color - change, and fizzing or bubbling can indicate new substances being formed. However, a liquid mixture turning into a solid after water evaporation is a physical change (evaporation and crystallization), not a chemical reaction as no new substances are formed chemically.

Answer:

A liquid mixture turns into a solid after water evaporates from it.