Question

Which of the following is a balanced chemical equation for the synthesis of NaBr from Na and Br2? A. 2Na + Br2 --> 2NaBr B. NaBr --> Na + Br2 C. 2NaBr --> 2Na + Br 2 D. 2Na + Br2 → NaBr

Answer 1

A. 2Na + Br2-->2NaBr.

Answer 2

Answer:

A) 2Na + $Br_{2}$ = 2NaBr

Explanation:

As the problem says that you should find the balanced chemical equation for the synthesis of NaBr from Na and $Br_{2}$, the reactants are Na and $Br_{2}$ and the product is NaBr, so it can be writen as:

Na + $Br_{2}$ = NaBr

Then you shoud balance the equation, it means that you should have the same number of each element in each part of the equation, so if you put a number 2 for the NaBr and the Na, the equation will be balanced:

2Na + $Br_{2}$ = 2NaBr