Question

what is the overall balanced equation for the precipitation reaction occurring between silver nitrate and calcium bromide?

Answer 1

The net ionic equation of the reaction between AgNO3 and CaBr is 2Ag^+(aq) + 2Br^-(aq) ------> 2AgBr(s)

The net ionic equation shows which ions underwent a change in the reaction. It omits the spectator ions. In order to obtain the net ionic equation, we must first write down the molecular equation as follows;

2AgNO3(aq) + CaBr2(aq) --------> 2AgBr(s) + Ca(NO3)2(aq)

Next, we have to obtain the complete ionic equation as follows;

2Ag^+(aq) + 2NO3^-(aq) + Ca^2+(aq) + 2Br^-(aq) ------>  2AgBr(s) +  Ca^2+(aq) + 2NO3^-(aq)

Lastly, we put down the net ionic equation in which the spectator ions are omitted as follows;

2Ag^+(aq) + 2Br^-(aq) ------> 2AgBr(s)

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