What is a mole? A. a unit for counting very small items

B. 6.02 x 1023 things

C. a really big number

D. all of these

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

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?