Question

Which of these best explains why the hydrogen atoms in a water molecule are attracted to Cl− ions in sodium chloride (NaCl)?

A. The hydrogen atoms have +1 charges.
B. The hydrogen atoms share electrons equally with the oxygen atom.
C. The hydrogen atoms have partial positive charges.
D. The hydrogen atoms form covalent bonds with the chloride ions.

Answer 1

C. The hydrogen atoms have partial positive charges

Hopefully this helps! :)

Answer 2

Answer: C. The hydrogen atoms have partial positive charges.

Explanation: The solubility of substances is governed by: Like dissolves like, which states that polar compounds are soluble in polar solvents and non polar compounds are soluble in non polar solvents.

Water being polar in nature dissolves
`NaCl` by getting between the oppositely charged ions of solute and thus decreasing the forces of attraction between the ions. The positively charged
`Na^+` ions are attracted to positive pole of water which is hydrogen and the negatively charged
`Cl^-` is attracted to negative pole of water which is oxygen.