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Chapter 1 review

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matter and change

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Chapter 1 review

  1. 1. Chapter 1 Review
  2. 2. What type of chemistry would determine the chemical process of cellular respiration?
  3. 3. What type of chemistry would determine the exact composition of a rock sample?
  4. 4. What type of chemistry would determine the best separation technique for an oil sample (oils are mostly carbon chains)?
  5. 5. What type of research is being performed if a group of scientists want to know the possible reactions with the element lithium?
  6. 6. What type of research is being performed the lithium study resulted in finding a new medication to treat psychological issues?
  7. 7. A) option a B) option b C) option c D) option d E) option e Which best represents a homogeneous mixture of an element and a compound?
  8. 8. A) option a B) option b C) option c D) option d E) option e Which best represents a gaseous compound?
  9. 9. A) option a B) option b C) option c D) option d E) option e Which best represents a solid element?
  10. 10. A) option a B) option b C) option c D) option d E) option e Which best represents a heterogeneous mixture of two elements?
  11. 11. A) filtration B) chromatography C) distillation D) vaporization E) homogenization A method of separation that employs a system with two phases of matter, a mobile phase and a stationary phase, is called
  12. 12. A) Solutions are always homogeneous mixtures. B) The terms “atom” and “element” can have different meanings. C) Elements can exist as atoms or molecules. D) Compounds can exist as atoms or molecules. E) At least two of the above statements (A-D) are false. Which of the following statements is false?
  13. 13. A) elements B) compounds C) pure water D) carbon dioxide E) all of these An example of a pure substance is
  14. 14. A) homogeneous mixture B) heterogeneous mixture C) pure mixture D) compound E) distilled mixture A solution is also called a
  15. 15. Name three methods for the separation of mixtures.
  16. 16. Give three physical methods used by chemists to separate mixtures and identify the type of mixture best suited for each process.
  17. 17. Which of the following is an extensive property? a) density b) chemical composition c) mass d) boiling point
  18. 18. Which of the following is a chemical change? a) sublimation b) chromatography c) boiling higher than standard boiling point d) burning
  19. 19. What are the horizontal rows on the periodic table called? a) periods b) families c) groups d) representative elements

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