The number of protons and neutrons in an atom is known as the a.) isotope. b.) atomic number. c.) mass number. d.) energy level.

What is a property of a double replacement reaction

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

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.