When a particular gas is mixed with two molecules in solution, a reaction occurs. Which of the following equations correctly models a balanced reaction?

A. F2 + NaBr → 2NaF + Br2

B. F2 + 2NaBr → 2NaF + Br2

C. F2 + 2NaBr → NaF + Br2

D. F2 + NaBr → NaF + Br2