Nacl is an ionic solid. the na+ and cl− ions in nacl are bonded through an electrostatic force of attraction commonly known as the ionic bond. water is a polar solvent. the oxygen atom, being more electronegative, attracts the electron cloud toward itself. as the electron cloud is pulled by the oxygen atom, it carries a partial negative charge, and the hydrogen atoms carry a partial positive charge. this partial separation of charges in the water molecule makes it polar. predict which intermolecular forces contribute the most to the dissolution of nacl in water. check all that apply.

ion-ion forces
ion-dipole forces
dipole-dipole forces
hydrogen bonding
suppose that nacl is added to hexane (c6h14) instead of water. which of the following intermolecular forces will exist in the system?

check all that apply.

ion-dipole force between na+ ions and a hexane molecule
ion-ion force between na+ and cl− ions
dipole-dipole force between two hexane molecules
hydrogen bonding between na+ ions and a hexane molecule
london dispersion force between two hexane molecules

1. Ion-dipole forces

2.

Ion-ion force between Na⁺ and Cl⁻ ions.

London dispersion force between two hexane molecules.

Explanation:

1. Predict which intermolecular forces contribute the most to the dissolution of NaCl in water. Check all that apply.

Na⁺ is attracted to Cl⁻ through ion-ion forces (attraction between solute). Water molecules attract each other through hydrogen bonding (attraction between solvent). For the dissolution to be effective, solute has to interact with the solvent. This happens due to ion-dipole forces, where Na⁺ ions are attracted to the negative part of water (O) and Cl⁻ ions are attracted to the positive part of water (H).

2. Suppose that NaCl is added to hexane (C₆H₁₄) instead of water. Which of the following intermolecular forces will exist in the system?

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

answer: they produce more slow than unicellular organisms.