Calculate the amount of heat needed to melt of solid acetic acid () and bring it to a temperature of . Round your answer to significant digits. Also, be sure your answer contains a unit symbol.

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

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.