12. The products of several precipitation reactions are given below. In each case, identify which product is the precipitate.
a) barium sulfate and sodium sulfide
b) lithium chloride and magnesium hydroxide
c) zinc chloride and calcium fluoride

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

Which metal exist in liquid state and can be cut with knife ?

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.