balance the entire chemical reaction using an atom inventory. remember to balance each element in the…

balance the entire chemical reaction using an atom inventory. remember to balance each element in the reaction. nabr + cl2 → nacl + br2 when the equation is balanced, what is the coefficient for nabr?
Answer
Explanation:
Step1: Analyze bromine atoms
On the right - hand side, there are 2 bromine atoms in $Br_2$. On the left - hand side, there is 1 bromine atom in $NaBr$. So, we need to put a 2 in front of $NaBr$ to balance bromine: $2NaBr+Cl_2\rightarrow NaCl + Br_2$.
Step2: Analyze sodium atoms
After putting 2 in front of $NaBr$, we have 2 sodium atoms on the left - hand side. To balance sodium, we put a 2 in front of $NaCl$: $2NaBr+Cl_2\rightarrow 2NaCl + Br_2$.
Step3: Analyze chlorine atoms
We have 2 chlorine atoms on the left - hand side in $Cl_2$ and 2 chlorine atoms on the right - hand side in $2NaCl$. The equation is now balanced.
Answer:
2