The Balanced Net Ionic Equation for Precipitation of CaCO₃ When

question 125

Multiple Choice

The balanced net ionic equation for precipitation of CaCO₃ when aqueous solutions of Na₂CO₃ and CaCl₂ are mixed is ________.

• A)2Na⁺ (aq) + CO₃^2- (aq) → Na₂CO₃ (aq)
• B)2Na⁺ (aq) + 2Cl^- (aq) → 2NaCl (aq)
• C)Na⁺ (aq) + Cl^- (aq) → NaCl (aq)
• D)Ca⁺(aq) + CO₃^2- (aq) → CaCO₃ (s)
• E)Na₂CO₃ (aq) + Ca (aq) → 2NaCl (aq) + CaCO₃ (s)

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Definitions:

Normal Fluctuations

Variations in data or statistical measurements that are considered normal or typical within a specific context.

Assignable Variation

Variability in a process attributable to identifiable reasons, rather than being due to chance.

Specific Events

Particular occurrences or happenings that are distinct and identifiable.

Centerline

In statistical quality control, a line on a control chart that represents the average or mean value of the data being monitored.