Answer:
2K^+(aq) + 2NO3^-(aq) —> 2K(NO3)
Step-by-step explanation:
2K (s) + Cd(NO3)2 (aq) —> 2K(NO3) + Cd
We can obtain the net ionic equation for the above reaction as follow:
Cd(NO3)2 will dissociate in solution as follow:
Cd(NO3)2 (aq) –> Cd^2+(aq) + 2NO3^-(aq)
K(s) –> K^+(aq)
Therefore:
2K (s) + Cd(NO3)2 (aq) —> 2K(NO3) + Cd
=>
2K^+(aq) + Cd^2+(aq) + 2NO3^-(aq) —>
2K(NO3) + Cd^2+(aq)
We shall cancel out Cd^2+ from both side of the equation to obtain the net ionic equation as shown below:
2K^+(aq) + 2NO3^-(aq) —> 2K(NO3)
Therefore, the net ionic equation for the reaction is
2K^+(aq) + 2NO3^-(aq) —> 2K(NO3)