Which of the following is true when ice melts? A) △ H> 0 and △ S> 0
B) △ H= 0 and △ S>0
C) △ H>0 and △ S<0
D) △ H< 0 and △ S<0
E) △ H< 0 and △ S>0

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

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?