What is the solubility (in moles/L) of CuCl in a solution that also contains 0.020 M CUNO3 (the latter is fully soluble). (Ksp for CuCl = 1.0 x10-6)

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.