Question

For the following aqueous reaction, complete and balance the molecular equation and write a net iconic equatio, making sure to include the physical states of the compounds:

Potassium carbonate + Strontium nitrate

Answer 1

The molecular equation for the reaction between potassium carbonate and strontium nitrate is K2CO3 (aq) + Sr(NO3)2 (aq) → 2KNO3 (aq) + SrCO3 (s). The complete ionic equation is 2K+ (aq) + CO3^2- (aq) + Sr^2+ (aq) + 2NO3^- (aq) → 2K+ (aq) + 2NO3^- (aq) + SrCO3 (s). The net ionic equation is CO3^2- (aq) + Sr^2+ (aq) → SrCO3 (s).

Step-by-step explanation:

The molecular equation for the reaction between potassium carbonate and strontium nitrate is:

K2CO3 (aq) + Sr(NO3)2 (aq) → 2KNO3 (aq) + SrCO3 (s)

The complete ionic equation for the reaction is:

2K+ (aq) + CO32- (aq) + Sr2+ (aq) + 2NO3- (aq) → 2K+ (aq) + 2NO3- (aq) + SrCO3 (s)

The net ionic equation for the reaction is:

CO32- (aq) + Sr2+ (aq) → SrCO3 (s)

Answer 2

Balance molecular equation:

K2CO3(aq) + Sr(NO3)2(aq) → SrCO3(s) + 2KNO3(aq)

Net ionic equation:

CO3∧-2(aq) + Sr∧+2(aq) → SrCO3(s)

Step-by-step explanation:

Potassium carbonate = K2CO3

Strontium nitrate = Sr(NO3)2

Chemical equation:

K2CO3 + Sr(NO3)2 → SrCO3 + KNO3

Balance chemical equation with physical states:

K2CO3(aq) + Sr(NO3)2(aq) → SrCO3(s) + 2KNO3(aq)

Ionic equation:

2K+(aq) + CO3∧-2(aq) + Sr∧+2(aq) + 2NO∧-3(aq) → SrCO3(s) + 2K+(aq) + 2NO∧-3(aq)

Net ionic equation:

CO3∧-2(aq) + Sr∧+2(aq) → SrCO3(s)

2K+ and 2NO∧-3 ions are spectator ions that's way these are not written in net ionic equation.

Spectator ions:

These are the ions that are present same on both side of chemical reaction and does not effect the equilibrium.