missing products, balance resulting equation, chemistry homework help

For each of the following reactions, write the missing product(s) and then balance the resulting equation. Identify each reaction by type.
a. Br2 + KI →
b. NaClO3 → Δ
c. C7H14 + O2 →  
d. CuCl2 + Na2S →
“Make sure to show your reasoning for each equation”