Problem: What is the net ionic equation for the reaction of NaOH(aq) with HCN(aq)?(A) OH−(aq) + HCN(aq) → CN−(aq) + H2O(l)(B) OH−(aq) + H+(aq) → H2O(l)(C) NaOH(aq) + HCN(aq) → NaCN(aq) + H2O(l)(D) Na+(aq) + OH−(aq) + HCN(aq) → Na+(aq) + CN−(aq) + H2O(l)(E) Na+(aq) + OH−(aq) + H+(aq) + CN−(aq) → Na+(aq) + CN−(aq) + H2O(l)

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We are being asked to determine the net ionic equation for the reaction of NaOH (aq) and HCN­ (aq).

Let’s first complete the reaction and determine the products formed.

Reactants:

• Sodium hydroxide

 sodium  group 1A  +1 charge  Na+
 hydroxide  polyatomic ion OH-

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Problem Details

What is the net ionic equation for the reaction of NaOH(aq) with HCN(aq)?

(A) OH(aq) + HCN(aq) → CN(aq) + H2O(l)

(B) OH(aq) + H+(aq) → H2O(l)

(C) NaOH(aq) + HCN(aq) → NaCN(aq) + H2O(l)

(D) Na+(aq) + OH(aq) + HCN(aq) → Na+(aq) + CN(aq) + H2O(l)

(E) Na+(aq) + OH(aq) + H+(aq) + CN(aq) → Na+(aq) + CN(aq) + H2O(l)

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