Sodium cyanide NaCN is a solid which melts at 564C to give a liquid that conducts electricity, It also dissolves in water to give a conduction solution.

Deduce the type of bonding that holds the compound together and why?

Write a balanced chemical equation for the reaction that occurs when NaCN dissolves in H2O

NaCN + H2O ==> Na^+(aq) + CN^-(aq)
It also hydrolyzes,
NaCN + H2O ==> NaOH + HCN is the molecular equation. It's the CN^- that hydrolyzes, and the net ionic equation is CN^- + HOH ==> HCN + OH^-

I have answered this same question for others but my answer was somewhat different BECAUSE not all of the problem was stated the same.

Thank you very much.

I don't get what the bond of this compound is and why it is so.

The bond between Na and CN is ionic (at least polar covalent) since the molten solid conducts electricity AND the aqueous solution conducts electricity. The bond between C and N is covalent.

To deduce the type of bonding that holds the compound NaCN together, we look at the properties of the compound in both its solid and aqueous states.

First, we consider the fact that NaCN is a solid that conducts electricity when melted. This suggests that there are mobile charged particles present in the molten substance, which can carry an electric current. This behavior is characteristic of compounds with ionic bonding.

Ionic bonding occurs between atoms with significantly different electronegativities, resulting in the transfer of electrons from one atom to another. In the case of NaCN, the sodium atom (Na) donates an electron to the cyanide ion (CN-). This transfer of electrons leads to the formation of Na+ and CN- ions, which are held together by electrostatic attractions. The overall compound is electrically neutral, but it consists of positively charged sodium ions and negatively charged cyanide ions, which can freely move in the molten state and conduct electricity.

Furthermore, when NaCN is dissolved in water, it dissociates into its constituent ions, Na+ and CN-. This dissolution behavior supports the presence of ionic bonding since ionic compounds tend to dissociate into ions when they dissolve in water.

Therefore, based on the fact that NaCN conducts electricity in both its molten state and aqueous solution, we can deduce that NaCN has ionic (or at least polar covalent) bonding between Na and CN, with covalent bonding between C and N.

Now, let's write the balanced chemical equation for the reaction that occurs when NaCN dissolves in water:

NaCN(s) + H2O(l) → Na+(aq) + CN-(aq)

In this reaction, the solid NaCN and liquid water react to form Na+ and CN- ions in an aqueous solution.