Mass of 0.5 moles of mg

What happens to the atomic radius when an elctron is lost

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

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)