Answer:
![2H_3PO_4 + 3Ba(OH)_2 \rightarrow 6H_2O + Ba_3(PO4)_2](https://img.qammunity.org/2019/formulas/chemistry/middle-school/yu8o8ezmvd6ijtc75r86qt1mjvigzetn86.png)
Step-by-step explanation:
Hello,
In this case, it is necessary to remember that a neutralization chemical reaction occurs when an acid reacts with a hydroxide to yield a salt and water. In such a way, the only reaction matching that definition is:
![2H_3PO_4 + 3Ba(OH)_2 \rightarrow 6H_2O + Ba_3(PO4)_2](https://img.qammunity.org/2019/formulas/chemistry/middle-school/yu8o8ezmvd6ijtc75r86qt1mjvigzetn86.png)
As phosphoric acid reacts with barium hydroxide to yield a neutral salt, barium phosphate and water.
Regards.