Answer
The common ions for each formula unit is listed below:
(a) MgCl2 contains Mg2+ and Cl- ions
(b) (NH4)2CO3 contains NH4+ and CO32- ions
(c) Zn(NO3)2 contains Zn2+ and NO3- ions
Work Step by Step
The common ions for each formula unit is listed below:
(a) MgCl2 contains Mg2+ and Cl- ions
(b) (NH4)2CO3 contains NH4+ and CO32- ions
(c) Zn(NO3)2 contains Zn2+ and NO3- ions