Answer:
2NaBr + Cl₂ ⟶ 2NaCl + Br₂
Explanation:
NaBr + Cl₂ ⟶ NaCl + Br₂
1. Put a 1 in front of the most complicated-looking formula (Br₂?):
NaBr + Cl₂ ⟶ NaCl + 1Br₂
2. Balance Br:
We have fixed 2 Br on the right. We need 2 Br on the right. Put a 2 in front of NaBr to fix it.
2NaBr + Cl₂ ⟶ NaCl + 1Br₂
3. Balance Na:
We have fixed 2 Na on the left. We need 2 Na on the right. Put a 2 in front of NaCl.
2NaBr + Cl₂ ⟶ 2NaCl + 1Br₂
4. Balance Cl
Done.
The equation should now be balanced.
5. Check that atoms balance:
[tex]\begin{array}{ccc}\textbf{Atom} & \textbf{On the left} & \textbf{On the right}\\\text{Na} & 2 &2\\\text{Br} & 2 & 2\\\text{Cl} & 2 & 2\\\end{array}[/tex]
It checks.
The balanced equation is
2NaBr + Cl₂ ⟶ 2NaCl + Br₂
