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. hbr + ba(oh)2 → babr2 + h2o when the reaction is balanced, what is the correct whole number coefficient for hydrobromic acid, hbr?
Answer
Explanation:
Step1: Count bromine atoms
On the right - hand side, there are 2 bromine atoms in $BaBr_2$. On the left - hand side, there is 1 bromine atom in $HBr$. So we need 2 moles of $HBr$ to balance bromine. $2HBr+Ba(OH)_2\rightarrow BaBr_2 + H_2O$
Step2: Count hydrogen and oxygen atoms
After putting 2 in front of $HBr$, on the left - hand side we have 2 hydrogen atoms from $HBr$ and 2 hydrogen and 2 oxygen atoms from $Ba(OH)_2$, so a total of 4 hydrogen and 2 oxygen atoms. On the right - hand side, in $BaBr_2$ there are no hydrogen and oxygen atoms, and in $H_2O$ we have 2 hydrogen and 1 oxygen atom. To balance hydrogen and oxygen, we need 2 moles of $H_2O$. $2HBr + Ba(OH)_2\rightarrow BaBr_2+2H_2O$
Answer:
2