The double displacement reaction of aluminum sulfate and calcium hydroxide.

Answer 1

what about it?
Al2(SO4)3(aq) + 3Ca(OH)2(aq) --> 3CaSO4(s) + 2Al(OH)3(s)

Answer 2

2Al (aq) + 3SO4 (aq) + 3Ca (aq) + 6OH (aq) --> 2Al(OH)3 (s) + 3CaSO4 (s)