when vinegar and baking soda are combined, bubbles begin to form. explain how the formation of bubbles is evidence of a chemical reaction.​

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.