Chapter 11: Mixtures and Solutions

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Presentation transcript:

Chapter 11: Mixtures and Solutions Table of Contents Exploring Pure Substances and Mixtures Solutions Working With Solubility

Exploring Pure Substances and Mixtures Definition of a pure substance: Mixture: Mixtures Which of these foods are heterogeneous and which are homogeneous? What would salt water be? What would Carbon Dioxide be?

Exploring Pure Substances and Mixtures Separating a Mixture What are the types of separation described? **

Solutions Solutions Solutions can be made from any combination of solids, liquids, and gases. Solutions are homogeneous mixtures. If sugar is added to water, water is the__________________and sugar is the _______________. Adding more sugar makes the solution more ___________________.

Solutions Colloids and Suspensions Colloids and suspensions are classified by the size of their particles. What are the particles of a suspension? If a suspension is shaken up and then left to sit, what will happen to the particles? List some examples of each…

Solutions Forming a Solution Explain what occurs as sodium chloride, an ionic solid, dissolves in water.

Solutions Effect of De-icing Fluid on the Freezing Point of Water

Working With Solubility Pickling requires saturated solutions of salt in water.

Working With Solubility Solvents and Solubility Some polar and nonpolar compounds form layers when they are mixed together. Which of these liquids are polar and which are nonpolar?

Working With Solubility Supersaturated Solution Dropping a crystal of solute into a supersaturated solution causes the extra solute to rapidly come out of solution.

Working With Solubility Crystallized honey, a supersaturated solution, can be more than 70 percent sugar. Remember: a saturated solution cannot dissolve any more solute into the solvent….it is as filled up as possible with solute.

Working With Solubility Cooking With Chemistry What happens to the solubility of table sugar as temperature increases?