U-235 and U-238 are different isotopes of uranium. The numbers next to the chemical symbol for uranium are the mass numbers of these isotopes. If uranium’s atomic number is 92, how many neutrons does U-235 have?

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

When the water vapor cools it condenses select a number that represents his process on the

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.