Identify the type of interactions involved in each of the following processes taking place during the dissolution of sodium chloride (NaCl) in water. Solvent-solvent interactions Solute-solute interactions Solute-solvent interactions

Explanation:

Solvent-Solvent interactions:

The existing bonding or interactions between the molecules of water are a dipole-dipole interaction. When NaCl solutes are dissolve in water it disturbs this existing dipole-dipole bond between the molecules of water.

Solute-Solute interactions: the solute-solute interaction is bond between molecules of the solute NaCl, NaCl is an ionic compound so the existing interaction between NaCl is ion-ion (NA+Cl-) interaction. When dissolved in water, the molecules of water tends to break this ion-ion interaction of NaCl.

Solute-Solvent interactions: this is the interaction that results to dissociation of NaCl. When NaCl is dissolved in H2O the ion-ion interaction of NaCl is broken, the molecules of the solvent interact with the molecules of the solute. This forms interactions between Na+ and O-, and interaction between H+ and Cl-

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

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