The Balanced Net Ionic Equation for the Precipitation of Calcium

question 119

Multiple Choice

The balanced net ionic equation for the precipitation of calcium carbonate 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:

Maturities

The dates on which financial obligations or instruments are due to be paid back or expire.

Modified Duration

A measure that quantifies the sensitivity of the price of a bond or other debt instrument to changes in interest rates, indicating the percentage change in price for a parallel shift in yield curves.

Corporate Bond

A type of debt security issued by corporations to raise capital, promising to pay back the face value plus interest.

Coupon Rate

The interest rate stipulated on a bond’s certificate, paid to its holder at specified intervals until maturity.