what are some indicators that a chemical reaction is occurring? check all that apply. the formation of…

what are some indicators that a chemical reaction is occurring? check all that apply. the formation of bubbles a change in size a change in color the formation of a liquid the formation of a precipitate
Answer
Brief Explanations:
Bubbles indicate gas formation in a reaction. A color - change can be due to new substances with different colors. A precipitate is a solid formed from a solution in a reaction. These are common signs of a chemical reaction. A change in size is usually a physical change and formation of a liquid alone may not always be a sign of a chemical reaction (e.g., melting).
Answer:
the formation of bubbles, a change in color, the formation of a precipitate