- 1. When the particles in a mixture are the size of atoms or molecules.
A) homogeneous mixture
B) solubility
C) solution
D) phase
- 2. the mixture appears to be too small to see the particles. example milk, cheese.
A) heterogeneous
B) solution
C) homogeneous
D) solute
- 3. The substance that gets dissolved is called the________
A) solvent
B) solute
C) solution
D) material
- 4. This does the dissolving, it's usually presented in greater amounts.
A) hydration
B) solvent
C) solution
D) solute
- 5. Water is an example of a _____________
A) chemical
B) solvent
C) solute
D) mixture
- 6. Solutes dissolve faster at ________ temperatures
A) low
B) freezing
C) high
- 7. __________ is the largest amount of solute that can dissolve in a specific amount of solvent. It depends on the temperature.
A) Mixture
B) Surface Area
C) Solution
D) Solubility
- 8. _________ is the amount of a particular substance in a given quantity of a mixture or solution
A) Dilute
B) Solution
C) Concentration
D) Agitation
- 9. Salad or trail mix is an example of a________________mixture.
A) heterogeneous
B) solution
C) concentration
D) homogeneous
- 10. A_________ solution contains the maximum amount of solute. When no more solute will dissolve. ex. sweetened tea
A) supersaturated
B) megasaturated
C) saturated
D) unsaturated
- 11. A solution that contains a small amount of solute. More solute would dissolve if added. Example: lightly sweet tea
A) megasaturated
B) saturated
C) supersaturated
D) unsaturated
- 12. A ___________ solution contains TOO much solute and will not dissolve, but it appears to be thick and crystalizes rapidly. Example: Overly sweetened tea where the sugar doesn't have room to dissolve.
A) saturated
B) megasaturated
C) supersaturated
D) unsaturated
- 13. Lemonade, sodas, and salt water some are examples of______________
A) soot
B) mixtures
C) solutions
D) solute
- 14. A combination of two or more substances that do not form a new substance. Example: muddy water,
A) malleability
B) conductivity
C) ductility
D) flatness ability
- 15. An example of suspension where mixtures separate is__________
A) oil and water
B) alcohol and water
C) malleability
- 16. Will ignite easily, burn vigorously
A) Explosive
B) Flammable
C) Combustible
- 17. Which of the following IS NOT a sign of a physical change
A) hardness
B) bubbles
C) odor
D) texture
- 18. Which of the following is a sign of a chemical change
A) fizzing
B) all of these
C) sound
D) light
- 19. If 500 L of a gas is collected at 75.6 kPa, and the volume was decreased by 125 L, what is the new pressure?
A) 100.8 kPa
B) 18.9 kPa
C) 200.52 kPa
D) 302.4 kPa
- 20. At 101.3 kPa, 1.37 mL of a gas was collected. What is the volume at 103 kPa?
A) 1.35 mL
B) 7,615.99 kPa
C) 2.70 mL
D) 103 mL
- 21. At .643 L and 12 degrees Celsius, what is the new temperature as the volume is decreased to .500 L?
A) 9.33 L
B) 0.03 degrees Celsius
C) .03 L
D) 9.33 degrees Celsius
- 22. At 1.64 L and -13 degrees Celsius, what is the new temperature if the volume is decreased by .500 L?
A) -9.04 degrees Celsius
B) 9.04 degrees Celsius
C) 3.96 degrees Celsius
D) -3.96 degrees Celsius
- 23. Melting candle wax: Physical or chemical change?
A) physical
B) chemical
C) neither
- 24. Burning a candle: Physical or chemical change?
A) neither
B) chemical
C) physical
- 25. Tearing paper: Physical or chemical change?
A) neither
B) chemical
C) physical
- 26. Burning paper: Physical or chemical change?
A) neither
B) chemical
C) physical
- 27. Dissolving table salt: Physical or chemical change?
A) chemical
B) physical
C) neither
- 28. Cutting a piece of magnesium ribbon: Physical or chemical change?
A) physical
B) neither
C) chemical
- 29. Adding hydrochloric acid to magnesium metal: Physical or chemical change?
A) chemical
B) neither
C) physical
- 30. Penny flattened by a hammer: Physical or chemical change?
A) physical
B) neither
C) chemical
- 31. Rusting water: Physical or chemical change?
A) physical
B) neither
C) chemical
- 32. A glass of juice frozen, melted, and refrozen: Physical or chemical change?
A) chemical
B) physical
C) neither
- 33. Which factor will cause a solid to dissolve faster in a liquid?
A) Stir the solution
B) Use an already saturated solvent
C) Cool the solution
D) Use a larger lump of the solid
- 34. Which of the following causes the greatest increase in the solubility of a gas in a liquid?
A) Increasing the temperature and the pressure
B) Decreasing the temperature and the pressure
C) Increasing the temperature and decreasing the pressure
D) Decreasing the temperature and increasing the pressure
- 35. How does the solubility of a solid change when the temperature of the liquid solvent is increased?
A) The solubility decreases
B) The solubility increases
C) The change in the solubility is unpredictable
D) There is no change in the solubility
- 36. Sugar water containing more sugar than would normally dissolve at 20 degrees Celsius is said to be __________.
A) saturated
B) supersaturated
C) unsaturated
- 37. Sugar water containing all the sugar that would normally dissolve at 10 degrees Celsius is said to be ________.
A) supersaturated
B) saturated
C) unsaturated
- 38. Sugar water containing an extremely large amount of sugar (more than we expected) is said to be ___________.
A) supersaturated
B) unsaturated
C) saturated
- 39. Sugar water containing a very small amount of sugar (less than we expected) is considered ________.
A) supersaturated
B) saturated
C) unsaturated
- 40. Which of the following is NOT a factor which affects the dissolving of solids in liquids
A) thickness
B) movement
C) temperature
D) particle size
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