Matter Worksheet

Matter

I. Classify each of the following materials as a compound(c), an element (e), a heterogeneous mixture (m), or a solution (s).

1. M iron filings 6. C table salt (sodium chloride)

2. S gasoline 7. M sugar in water

3. E nitrogen 8. M sand and powdered zinc

4. C grain alcohol 9. M homogenized milk

5. C baking soda (sodium hydrogen carbonate)

II. Identify each of the following changes as chemical (c) or physical(p):

10. P grinding rock candy into a powder

11. C warming up left-over vegetable soup

12. C rusting of a razor blade

13. C mixing kool-aid, water, and sugar together

14. P cooling soda in the refrigerator

15. C dropping alka-seltzer tablet into a glass of water

16. P mulching grass

17. C tarnishing of a silver spoon

III. Classify each of the following as a chemical or physical property by placing a c for chemical or a pe for physical extensive and pi for physical intensive in the blank:

18. C The boiling point of ethyl ether is 34.6oC.

19. Pe The volume of soda in the bottle is 1.00 dm3.

20. C Copper is an excellent conductor of electricity.

21. C Sodium reacts vigorously with water.

22. Pi The density of silver is 10.50 g/cm3.

23. C Oxygen is needed for objects to burn.

24. Pi Gold is very malleable.

25. Pe The mass of peanut is 6.1 g

26. C Sodium reacts with water.

27. Pi Rubidium is red.

28. C Silver conducts electricity.

29. C Zinc resists corrosion.

30. C Alcohol boils at 37oC.

31. C Paint dissolves in gasoline.

32. Pi Platinum is ductile.

33. C Paper is flammable.

34. Pi The rebar is 1.5 m long.

35. Pi Clay is malleable.

36. C Acid rain is corrosive.

37. C Cesium freezes at 28oC.

IV. Classify each of the following as a chemical or physical change by placing a C for chemical or a P for physical in the blank.

38. P Alcohol...