# How do you write a net ionic equation for the reaction of aqueous hydrocyanic acid and aqueous sodium hydroxide?

Feb 22, 2016

Weak acid + strong base gives water and a salt.

#### Explanation:

$H - C \equiv N \left(a q\right) + N a O H \left(a q\right) \rightarrow N a C \equiv N \left(a q\right) + {H}_{2} O \left(l\right)$

Since we were axed for a net ionic equation, we could remove the $N {a}^{+}$ ion, which, after all, was along for the ride:

$H - C \equiv N \left(a q\right) + {\text{^(-)OH(aq) rarr }}^{-} C \equiv N \left(a q\right) + {H}_{2} O \left(l\right)$

Are these equations balanced with respect to mass and charge?

Can you give the equivalent reaction between phosphoric acid, ${H}_{3} P {O}_{4}$ and 1 equiv of sodium hydroxide?