Na is spectator ion , it is not present in final solution.
What is a full balanced equation?
The global balance equations (also known as full balance equations) are a set of equations that characterize the equilibrium distribution (or any stationary distribution) of a Markov chain, when such a distribution exists.
Cyanide will form a 4 co ordinate complex .
Charge of cyanide = -1 , whereas water has no changes
Zn( H₂o)₄]²⁺ (aq) + 4 CN⁻ (aq) [ Zn (CN)₄]² (aq) + 4Ho
As Na is spectator ion , it is not present in final solution.
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