Hydrocyanic Acid, HCN, Is a Weak Acid $\ell$ )
B) HCN(aq) + H₂O(aq) ? CN^-(aq) + H₃O⁺(aq)
C)

question 21

Multiple Choice

Hydrocyanic acid, HCN, is a weak acid. Write a net ionic equation for the reaction of aqueous hydrocyanic acid and aqueous sodium hydroxide.

• A) HCN(aq) + NaOH(aq) ? Na⁺(aq) + CN^-(aq) + H₂O( \(\ell\) )
• B) HCN(aq) + H₂O(aq) ? CN^-(aq) + H₃O⁺(aq)
• C) H⁺(aq) + OH^-(aq) ? H₂O( \(\ell\) )
• D) HCN(aq) + OH^-(aq) ? CN^-(aq) + H₂O( \(\ell\) )
• E) H⁺(aq) + NaOH(aq) ? Na⁺(aq) + H₂O( \(\ell\) )

---

Definitions:

Emoticon

A textual expression composed of characters from a standard keyboard to convey the writer's emotions or clarify tone, such as :) for a smile.

Substitute

A replacement or alternative for something else.

Encoding And Decoding

The processes of transforming information into a form that can be stored (encoding) and later retrieved (decoding) from memory.

Communication Patterns

Refers to the habitual ways in which individuals and groups interact and exchange information.