Is aluminium sulfate an ionic compound?

Answer 1

Yes, Aluminum Sulfate is an ionic compound.

Al2(SO4)3 is Aluminum Sulfate


SO4-2 is a polyatomic anion with a charge of -2.


Al is Aluminum, a metal and therefore a cation, with a charge of +3.


All ionic compounds have an overall charge of 0, so the number of Sulfate ions and Aluminum must be changed in order to achieve a charge of 0.


When the charge of 0 is achieved, you end up with:
Al2(SO4)2

Answer 2

Sodium and aluminium doesn't react.