Question

exit ticket: balancing and rxn types
1 fill in the blank 1 point
balance the reaction shown below by selecting the correct coefficient. all boxes must be filled, so include coefficients of \1\ as necessary.
cl₂ + nabr → nacl + br₂

Explanation:

Step1: Balance chlorine atoms

We have 2 chlorine atoms in $Cl_2$. On the product - side, in $NaCl$, we need 2 moles of $NaCl$ to balance the chlorine atoms. So the coefficient of $NaCl$ is 2.
$Cl_2+NaBr
ightarrow2NaCl + Br_2$

Step2: Balance sodium and bromine atoms

Since we have 2 moles of $NaCl$, we need 2 moles of $NaBr$ to balance the sodium and bromine atoms.
$Cl_2 + 2NaBr
ightarrow2NaCl+Br_2$

Answer:

1, 2, 2, 1