Which of the chemicals in the following chemical reaction is the acid? HCO3- + H20 -->CO3^2- +H30+

A.) HCO3-
B.) co3²-
C.) H30+
D.) H20

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)

Salt in oceans comes from and of rocks

Rank substituents in order of their priority when assigning the e or z label to an alkene. i, ch2i , h, ch2ch2cl, f