Question

4)

 The mixtures of sodium carbonate and calcium nitrate react to precipitate calcium carbonate and sodium nitrate. This reaction is shown by which balanced chemical equation?


4)

 The mixtures of sodium carbonate and calcium nitrate react to precipitate calcium carbonate and sodium nitrate. This reaction is shown by which ba.lanced chemical equation?


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Answer 1

The reaction between Na2CO3 and Ca(NO3)2 to precipitate CaCO3 and NaNO3 is shown by balanced double diaplacement reaction.

Answer 2

Na₂CO₃ + Ca(NO₃)₂ → CaCO₃ + 2NaNO₃

Step-by-step explanation:

• Sodium carbonate = Na₂CO₃

• Calcium nitrate = Ca(NO₃)₂

• Calcium carbonate = CaCO₃

• Sodium nitrate = NaNO₃

The unbalanced reaction is:

Na₂CO₃ + Ca(NO₃)₂ → CaCO₃ + NaNO₃

• We begin by balancing Na, so we put a coefficient of two in sodium nitrate:

Na₂CO₃ + Ca(NO₃)₂ → CaCO₃ + 2NaNO₃

• Ca is already balanced, there is 1 Ca atom in each side of the reaction.
• CO₃ is already balanced, there is 1 group in each side of the reaction.
• NO₃ is already balanced, there are 2 groups in each side.

The reaction is now balanced.