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Who Wants Piles and Piles of MONEY??

Who Wants Piles and Piles of MONEY??. Pennies minted after 1984 contain 97.5% zinc and 2.5% copper. These coins are an example of. A. suspensions. B. emulsions. A B C D. Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000

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Who Wants Piles and Piles of MONEY??

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  1. Who Wants Piles and Piles of MONEY??

  2. Pennies minted after 1984 contain 97.5% zinc and 2.5% copper. These coins are an example of A. suspensions B. emulsions • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. colloids D. alloys 60

  3. What determines whether a mixture is a suspension or a colloid? A. Size of particles B. Number of particles • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. Distribution of particles D. None of the above 60

  4. An oatmeal raisin cookie is an example of a A. Homogeneous mixture B. solution • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. Heterogeneous mixture D. solvent 60

  5. A heterogeneous mixture is one that is NOT A. Easily mixed together B. Made of two or more liquids • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. Edible by humans D. Uniform throughout 60

  6. Which of the following is a homogeneous mixture? A. Salad dressing B. Rubbing alcohol • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. gelatin D. Orange juice with pulp 60

  7. The particles in a colloid remain dispersed throughout the mixture because they A. Are extremely small B. Have a negative charge • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. Have a positive charge D. Are of different sizes 60

  8. You can skim the fat off the top of a kettle of cold soup because fat is A. Made of small particles B. An emulsion that remains dispersed throughout the soup • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. Made of large particles that will not pass through a filter D. Less dense than water and rises to the top 60

  9. You can make a solute dissolve more quickly in a solvent by A. Adding more solute B. Adding ice • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. Heating the solvent D. Removing some solvent 60

  10. An example of a nonpolar molecule is A. water B. Olive oil • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. vinegar D. salt 60

  11. Some types of peanut butter settle into two layers, a solid layer and a liquid layer. These peanut butters are A. suspensions B. colloids • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. solutions D. emulsions 60

  12. Two liquids that form a heterogeneous mixture are said to be A. solutes B. immiscible • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. colloids D. miscible 60

  13. Which of the following is an example of a homogeneous mixture? A. fog B. gasoline • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. paint D. Grapefruit juice 60

  14. Particles in a(n) ___ can be separated by filtration. A. alloy B. solution • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. suspension D. All of the above 60

  15. The Tyndall effect is observed in A. alloys B. solutions • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. solvents D. colloids 60

  16. The electrons in a water molecule are gathered nearest to A. The two hydrogen atoms B. The four hydrogen atoms • A • B • C • D Points 15. $10,000 14. $9,000 13. $8,000 12. $7,000 11. $6,000 10. $5,000 9. $4,000 8. $3,000 7. $2,000 6. $1,000 5. $500 4. $400 3. $300 2. $200 1. $100 C. The three oxygen atoms D. The one oxygen atom 60

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