Complete and Balance if there is a reaction?

Question

Cl2(g) + Br(aq) -->
SO3(g) + KOH(aq) -->
B(OH)3(aq) + H2O -->
I2(g) + H2O -->
F2(g) + Cl(g) -->
Br2(g) + Li (s) -->

Answer 1

1) Cl2(g) + Br2(aq) --> 2BrCl(g)

2) SO3(g) + 2KOH(aq) --> K2SO4(aq) + H2O

3) B(OH)3(aq) + H2O --> B(OH)4−(aq) + H+(aq)

4) I2(g) + H2O(l) --> OI-(aq) + 2H+(aq) + I-(aq)

5) F2(g) + Cl2(g) --> 2ClF(g)

6) Br2(g) + 2Li (s) --> 2LiBr

Answer 2

You will need to consult a table of activity for metals and one for nonmetals to see which is more active. If the more active element is "alone" in the reactants, then the reaction will occur. If the more active element is in a compound as a reactant, then the reaction will not occur.