Which of the following statements are true regarding ionic compounds with polyatomic ions? a
When an alkali earth metal is attracted to a phosphate, a cation to anion ratio would be 3:2

b
Cobalt's charge is the same in CoSO4 and CoSO3

c
potassium cyanide and silver iodate are equal in cation to anion ratio.

d
An acetate can never be in an ionic compound with a cation to anion ratio of 1:3

e
Ni(SCN)2 and Au(SCN)3 have a same charge for the transition metal.