Which of the following reactions are redox reactions?

Check all that apply. Check all that apply

. Al(s)+3Ag+(aq) = Al3+(aq)+3Ag(s)

SO3(g)+H2O(l) = H2SO4(aq)

Ba(s)+Cl2(g) = BaCl2(s)

Mg(s)+Br2(l) = MgBr2(s)