Why does pure water not conduct electricity in terms of bonding

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.

Which fact represents evidence for the big bang theory?

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa