Question

Draw a model showing the aqueous Ca2+ and Cl- ions (the ions surrounded by water molecules) showing the correct orientation of water molecules around the cation and anion.

Answer 1

Task:

Draw a model showing the aqueous $\mathrm{Ca2+}$ and Cl- ions (the ions surrounded by water molecules) showing the correct orientation of water molecules around the cation and anion.

Answer:

Calcium cation is surrounded by oxygen atoms of water molecule, because calcium has positive charge but oxygen negative partial charge.

Anions Cl- are surrounded by hydrogen atoms of water molecule because Cl- has negative charge but hydrogen positive partial charge.