Consider the three statements below. Which statement(s) is(are) true? 1. Hydration is a special case of solvation in which the solvent is water. 2. The oxygen end of water molecules is attracted toward Ca2+ ions. 3. The hydrogen end of water molecules is attracted towards Cl- ions.

Q: I need help calculating and setting up questions 4 or 5.   thank you for your help!

A: Since you have posted multiple questions, we are entitled to answer the first only.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.