Unit Test — Unit test Answers

A beaker contains a solution. A single solute crystal is added to the solution. Immediately, crystals form in the solution. Which term best describes the solution before the crystal was added?

Which is the correct name for MgSO4•7H2O?

Which is a characteristic of a nonelectrolyte?

Which term refers to compounds that can form hydrates but do not contain water molecules?

A 2.000-g sample of a hydrated copper sulfate is heated, and the waters of hydration are removed. If the mass of the remaining salt is 1.278 g, what was the percentage of water in the original hydrate?Use the formula