What is the mass of 20 moles of fluorine?

How many neutrons does a atom of cobalt have?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

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.