What is the energy of a photon of light whose frequency is 7.85 x 1015 Hz? A.5.20 x 10^-18
B.2.53 x 10^-41 )
C.3.82 x 10^-8)
D.2.36 X 10^24 J

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)