Question

____ NaF + ____ Br2 à ____ NaBr + ____ F2

A. ---, 2, 2, ---

B. 2, ---, ---, 2

C. 2, ---, 2, ---

Answer 1

2 NaF + Br2 --> 2NaBr + F2

Step-by-step explanation:

Well first I notice that there are two flourines on the products side so we need to put a 2 of NaF. Now there are 2 sodiums on the products side so we have to put another two in front of NaBr.

2 NaF + Br2 --> 2NaBr + F2