Which is more precise 2.8 mm or 3.79mm

Lewis structure and molecular geometry for nh2cl

Why does his teacher ask him to balance the equation by including the correct coefficient

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.