which indicator of a chemical reaction is shown in the picture?\n○ the formation of a gas\n○ the formation…
which indicator of a chemical reaction is shown in the picture?\n○ the formation of a gas\n○ the formation of a precipitate\n○ a change in energy
Answer
Brief Explanations:
The picture shows bubbles in a test - tube, which is a sign of gas formation during a chemical reaction. Precipitate formation would be a solid settling out, and there is no clear indication of a change in energy from the image.
Answer:
the formation of a gas