Question

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?

Explanation:

Step1: Balance bromine and chlorine

$$2\text{NaBr}+\text{Cl}_2\to2\text{NaCl}+\text{Br}_2$$

Step2: Check sodium

There are 2 sodium atoms on the left (from \(2\text{NaBr}\)) and 2 sodium atoms on the right (from \(2\text{NaCl}\)).

Answer:

\(2\)