2. Ch. 4: Solutions, Acids and Bases A Solution is a Type of Mixture The Amount of Solute that Dissolves can Vary Solutions can be Acidic, Basic, or Neutral Terms 100 200 300 400 500

3. Is the sand and water considered a mixture or a solution? Mixture—not the same throughtout. Parts can be be physically separated b/c they are not chemically changed.

4. A ___________ is a substance that is dissolved to make a solution. Solute

5. When substances in a solution are in the same physical state (solid, liquid, gas), which is the solvent? The solvent is the substance that is present in the greatest amount. Given that information...what would the solvent be for the air we breathe? NITROGEN!

6. In a suspension, the particles are __________ than those found in a solution. Larger—instead of dissolving, these particles turn the liquid cloudy.

7. Will the boiling point increase or decrease if we add more solute to a solution? Increase.

8. The amount of solute dissolved in a solvent at a given temperature is known as... Concentration

9. Sometimes a solution contains more dissolved solute than is normally possible. What is this known as? Supersaturated

10. ________ are insoluble (will not dissolve) in water. Oils

11. An increase in temperature for a solid will ___________ its solubility. An increase in temperature for a gas will ___________ its solubility. Increase; decrease. **TWO PART QUESTION

12. Because water is _________ and oil is ______________, their molecules are not attracted to each other. Polar; Nonpolar

13. Which of the following is NOT a proper way to test if something is an acid? A.seeing if it reacts with a metal B.placing a few drops of solution on a compound that contains carbonate C.Tasting it D.Using litmus paper C.—I’m really hoping everyone got this correct

14. Please name at least TWO examples of common household bases. Drain cleaner, soap, ammonia, alkaseltzers, baking soda, detergent, acetone (high levels)

15. True or False. Numbers below 7 on the pH scale indicate basic solutions. False—it would indicate an acidic solution

16. Please explain the concept of neutralization and provide a real-life example of this. Neutralization: a chemical reaction in which an acid reacts with a base to form salt. A common example occurs when you swallow an antacid tablet to relieve an upset stomach.

17. Acids ________ protons and bases _________ protons. Donate; accept

18. Neutral A __________ substance is neither an acid or a base.

19. What is a solution that has a low concentration of solute. Dilute

20. ___________ is the amount of solute that dissolves in a certain amount of a solvent at a given temperature and pressure to provide a saturated solution. Solubility

21. What is known as the concentration of hydrogen ions in a solution (also measurement of the acidity) pH

22. Please give me an example of something with a pH level of 6.5 (remember, this is pretty close to being neutral!) Milk