A49.2 g sample of solid iron was heated from 16.2c to 58.9c. what ws the energy change? solve for q(heat energy).iron has a specific heat value of .4494

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.

Draw two cyclic constitutional isomers of cis-1

Which terms are used to identify pure substances