How many molecules of water, H20, are present in 75.0 g of H20? A) 75.0 molecules
B) 18.0 molecules
C) 7.53 x 1024 molecules
D) 2.51 x 1024 molecules

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

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?

Name the intersection of plane bpq and plane cpq.