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Chapter 1 Introduction: Matter and Measurement

Chapter 1 Introduction: Matter and Measurement. Chemistry: The Central Science , 10th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten. Todd Austell, The University of North Carolina  2006, Pearson Prentice Hall. a. about 1000 elements about 100 elements

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Chapter 1 Introduction: Matter and Measurement

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  1. Chapter 1Introduction: Matter and Measurement Chemistry: The Central Science, 10th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten Todd Austell, The University of North Carolina  2006, Pearson Prentice Hall

  2. a. • about 1000 elements • about 100 elements • about 50 elements • about 200 elements

  3. a. • about 1000 elements • about 100 elements • about 50 elements • about 200 elements

  4. b. • atoms and molecules • cells • microcrystals • metals and nonmetals

  5. b. • atoms and molecules • cells • microcrystals • metals and nonmetals

  6. H • Fe • O • Ca

  7. H • Fe • O • Ca

  8. There are three atoms making up water. • The water molecule contains atoms of two different elements. • Water has more than one bond. • Water has a higher mass than hydrogen and oxygen.

  9. There are three atoms making up water. • The water molecule contains atoms of two different elements. • Water has more than one bond. • Water has a higher mass than hydrogen and oxygen.

  10. a. • a chemical change • cannot determine without additional information • neither a physical nor a chemical change • a physical change

  11. a. • a chemical change • cannot determine without additional information • neither a physical nor a chemical change • a physical change

  12. b. • a chemical change • cannot determine without additional information • neither a physical nor a chemical change • a physical change

  13. b. • a chemical change • cannot determine without additional information • neither a physical nor a chemical change • a physical change

  14. 1. 1 mg 2. 1 µg 3. 1 pg

  15. 1 mg • 1 µg • 1 pg

  16. the number of people in your chemistry class • the mass of a penny • the number of grams in a kilogram

  17. the number of people in your chemistry class • the mass of a penny • the number of grams in a kilogram

  18. Conversion factors must have at least half as many significant figures as the data. • The number of significant figures in conversion factors does not matter. • Conversion factors must always have at least the number of significant figures as the data being converted. • Conversion factors must have at least two more significant figures than the data being converted.

  19. Conversion factors must have at least half as many significant figures as the data. • The number of significant figures in conversion factors does not matter. • Conversion factors must always have at least the number of significant figures as the data being converted. • Conversion factors must have at least two more significant figures than the data being converted.

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