What evidence demonstrates that a chemical change has occurred? A A color change occurs.
B A gas is formed.
C A solid is dissolved,
D A precipitate is formed.

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.