Which era does th rock of the canadian shield date back to a. predcamebrain b. paleozoic c. mesozoic d. cenozoic

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.

What is the chemical name of the compound ti2o3?

To calculate the molarity of a solution, you need to know the moles of solute and the