Question

Write the formula unit equation for this re- action occuring in water: Barium perchloate and sodium sulfate are mixed to form sodium perchlorate and barium sulfate.

1. Na2SO4(aq) + Ba(ClO)2(aq) → 2 NaClO(aq) + BaSO4(s)
2. Na2SO4(s) + Ba(ClO4)2(aq) → 2 NaClO4(s) + BaSO4(aq)
3. Na2SO4(aq) + Ba(ClO4)2(s) → 2 NaClO4(aq) + BaSO4(s)
4. Na2SO4(aq) + Ba(ClO4)2(aq) → 2 NaClO4(s) + BaSO4(aq)
5. Na2SO4(aq) + Ba(ClO3)2(aq) → 2 NaClO3(aq) + BaSO4(s)
6. Na2SO4(aq) + Ba(ClO3)2(s) → 2 NaClO3(aq) + BaSO4(s)
7. Na2SO4(aq) + Ba(ClO4)2(aq) → 2 NaClO4(aq) + BaSO4(s)

Answer 1

The correct chemical equation for the reaction of barium perchlorate with sodium sulfate to form sodium perchlorate and barium sulfate is 7. Na2SO4(aq) + Ba(ClO4)2(aq) → 2 NaClO4(aq) + BaSO4(s).

Step-by-step explanation:

The correct formula unit equation for the reaction occurring in water, where barium perchlorate and sodium sulfate are mixed to form sodium perchlorate and barium sulfate, is option 7:

Na2SO4(aq) + Ba(ClO4)2(aq) → 2 NaClO4(aq) + BaSO4(s)

This reaction is a typical double displacement reaction, where the cations and anions exchange partners and form new compounds. The product barium sulfate (BaSO4) is insoluble in water and precipitates out of the solution as a solid, while sodium perchlorate (NaClO4) remains in solution as an aqueous compound.