Question

2. The reaction can be described in words as follows: aluminum sulfate reacted with ammonium hydroxide forming the insoluble product or precipitate, aluminum hydroxide and the water-soluble ammonium sulfate. The chemical equation can be written as follows (“aq” means aqueous, dissolved in water):

___KAl(SO4)2 (aq) + ___NH4OH(aq)  ___Al(OH)3(s) + ___(NH4)2SO4(aq) + ___KOH(aq)

Answer 1

I suggest you look at the number of OH on the left and make that equal to the number on the right. Go from there to finish.