Which are two types of stereoisomers?
a. geometric isomers and structural isomers
b. structural isomers and cyclic isomers
c. optical isomers and structural isomers
d. geometric isomers and optical isomers

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

Type the letter that represents the correct location for each particle type below.

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?