Question

Predict the products of the double replacement reactions given. Check to see that the equations are balanced. BaCl2 + MgSO₄ → ?

1) BaMgClSO₄
2) Ba(SO₄)2 + MgCl2
3) BaMgCl2 + BaSO₄
4) MgCl + BaSO₄

Answer 1

The correct prediction for the double replacement reaction between BaCl2 and MgSO4 is BaSO4 + MgCl2, with BaSO4 as an insoluble precipitate and MgCl2 remaining in solution.

Step-by-step explanation:

When considering the double replacement reaction BaCl2 + MgSO4 → ?, the correct prediction for the products is:

BaSO4 + MgCl2

This reaction occurs because barium and magnesium cations switch their sulfate and chloride anions respectively. The balanced chemical equation for this reaction is:

BaCl2(aq) + MgSO4(aq) → BaSO4(s) + MgCl2(aq)

Barium sulfate (BaSO4) is an insoluble compound and forms a precipitate, while magnesium chloride (MgCl2) remains soluble in water.