Answer:
Na₂SO₄ + CaCO₃ ⇄ Na₂CO₃ + CaSO₄
2 Na(CH₃COO) + CaCO₃ ⇄ Ca(CH₃COO)₂ + Na₂CO₃
2 NaCl + CaCO₃ ⇄ CaCl₂ + Na₂CO₃
2 NaNO₃ + CaCO₃ ⇄ Na₂CO₃ + Ca(NO₃)₂
Step-by-step explanation:
We have to write the balanced chemical equations for 4 double displacement reactions. We need to complete the reactions with the products. The general reaction is Salt 1 + Salt 2 ⇄ Salt 3 + Salt 4.
Sodium sulfate + calcium carbonate
Na₂SO₄ + CaCO₃ ⇄ Na₂CO₃ + CaSO₄
Sodium acetate + calcium carbonate
2 Na(CH₃COO) + CaCO₃ ⇄ Ca(CH₃COO)₂ + Na₂CO₃
Sodium chloride + calcium carbonate
2 NaCl + CaCO₃ ⇄ CaCl₂ + Na₂CO₃
Sodium nitrate + calcium carbonate
2 NaNO₃ + CaCO₃ ⇄ Na₂CO₃ + Ca(NO₃)₂