What is this electron configuration
1s22s22p 3s 3p 4s23d104p65s

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

When the mercury level in a barometer decreases that atmospheric pressure has

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)