Write the balanced reaction that occurs when an aqueous solution of calcium chloride is mixed with an aqueous solution of sodium carbonate.

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04-11-2022
Chemistry

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Write the balanced reaction that occurs when an aqueous solution of calcium chloride is mixed with an aqueous solution of sodium carbonate.

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jcmacahia7 jcmacahia7 · Answer 1 · 2022-11-08T06:47:30-05:00

When an aqueous solution of calcium chloride is mixed with an aqueous solution of sodium carbonate, the balanced reaction is CaCl₂ (aq) + Na₂CO₃ (aq) ⇒ 2NaCl (aq) + CaCO₃ (s).

The given reaction is a double-replacement reaction, in which there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product

Write down the reactants.

CaCl₂ (aq) + Na₂CO₃ (aq)

Separate the ions of each reactant.

CaCl₂ (aq) + Na₂CO₃ (aq) ⇒ (Ca²⁺)(2Cl⁻¹) + (2Na⁻)(CO₃⁻²)

Exchange the ions.

CaCl₂ (aq) + Na₂CO₃ (aq) ⇒ (2Na⁻)(2Cl⁻) + (Ca²⁺)(CO₃⁻²)

Hence, the balanced reaction is:

CaCl₂ (aq) + Na₂CO₃ (aq) ⇒ 2NaCl (aq) + CaCO₃ (s)

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