Study Guide – Matter—Properties and Changes



Study Guide – Matter—Properties and Changes

Section 1 Properties of Matter

1. mass

2. substance

3. properties

4. Physical

5. density

6. chemical

7. physical

8. chemical

9. chemical

10. physical

11. physical

12. chemical

13. physical

14. physical

15. physical

16. physical

17. physical

18. gas

19. solid

20. liquid

21. true

22. false

23. true

24. false

25. false

26. false

27. false

28. false

Section 2 Changes in Matter

1. boil

2. freeze

3. condense

4. vaporize

5. melt

6. grind

7. crumple

8. crush

9. explode

10. rust

11. oxidize

12. corrode

13. tarnish

14. ferment

15. burn

16. rot

17. c

18. a

19. d

20. e

21. b

22. Masswater ’ Masshydrogen + Massoxygen; 178.8 g water ’ 20.0 g hydrogen + Massoxygen; Massoxygen ’ 178.8 g ( 20.0 g; Massoxygen ’ 158.8 g

Section 3 Mixtures of Matter

1. mixtures

2. water

3. heterogeneous

4. sand-water mixture

5. solutions

6. salt-water mixture

7. b

8. c

9. d

10. a

Section 4  Elements and Compounds

1. c

2. b

3. d

4. c

5. d

6. b

7. element

8. compound

9. element

10. element

11. compound

12. Ne

13. Ca

14. Fe

15. Ti

16. F

17. 8.4 g carbon/20.0 g sucrose × 100% ’ 42.00% carbon

18. 51.50% oxygen ’ Massoxygen/20.0 g sucrose × 100%; 51.50% oxygen × 20.0 g sucrose/100% ’ Massoxygen ’ 10.3 g

19. 6.50%; because the mass percentage is consistent regardless of the amount of sucrose

20. They are the same compound.

21. They are not the same compound.

22. 8 g O/1g H

23. 16 g O/1g H

24. The mass ratio of oxygen to hydrogen in H2O2 is two times the mass ratio of oxygen to hydrogen in H2O. This follows the law of multiple proportions.

25. No; they have different proportions of hydrogen and oxygen.

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