Question

question 4 10 pts balance the following double displacement reaction by choosing the correct coefficients. select (nh₄)₃po₄(aq) + select bas(aq)→ select (nh₄)₂s + select ba₃(po₄)₂

Explanation:

Step1: Balance barium atoms

We have 3 barium atoms in $Ba_3(PO_4)_2$ on the product - side. So, we need 3 moles of $BaS$ on the reactant - side.
$2(NH_4)_3PO_4(aq)+3BaS(aq)\to$

Step2: Balance phosphate atoms

There are 2 phosphate atoms in $Ba_3(PO_4)_2$. So, we need 2 moles of $(NH_4)_3PO_4$ on the reactant - side.
$2(NH_4)_3PO_4(aq)+3BaS(aq)\to 3(NH_4)_2S(aq)+Ba_3(PO_4)_2$

Step3: Check other atoms

For nitrogen, hydrogen, sulfur, and oxygen atoms, they are also balanced.

Answer:

$2$ $(NH_4)_3PO_4(aq)+3$ $BaS(aq)\to3$ $(NH_4)_2S + 1$ $Ba_3(PO_4)_2$
So the coefficients are: [2], [3], [3], [1]