name abianna lee chemistry i worksheet classification of matter and changes instructions: write e in the blank if the material is heterogeneous or o if it is homogeneous. 1. wood ______ 6. dirt ______ 2. freshly-brewed black coffee ______ 7. sausage-and-mushroom pizza ______ 3. water ______ 8. air ______ 4. lucky charms® ______ 9. milk ______ 5. salt ______ 10. gold ______ instructions: classify each of the following as an element e, a compound c, or a mixture m. 11. gold ______ 16. air ______ 12. water ______ 17. carbon dioxide ______ 13. seawater ______ 18. silver ______ 14. sugar ______ 19. ice ______ 15. a chocolate sundae ______ 20. a big mac® ______ instructions: classify each of the following properties of matter as physical p or chemical c. 21. color ______ 26. reacts violently with chlorine ______ 22. density ______ 27. good conductor of heat ______ 23. burns easily (flammable) ______ 28. dissolves readily in water ______ 24. not affected by acids ______ 29. melts at 145 °c ______ 25. boils at 450 °c ______ 30. malleable ______ instructions: classify each of the following changes in matter as physical p or chemical c. 31. grinding chalk into powder ______ 36. burning gasoline ______ 32. dissolving salt in water ______ 37. hammering gold into foil ______ 33. dissolving zinc in acid ______ 38. melting ice ______ 34. tearing a piece of paper ______ 39. digesting food ______ 35. stretching copper into wire ______ 40. making hydrogen from water ______ instructions: classify each of the following as an intensive property i or an extensive property e. 41. mass ______ 46. color ______ 42. density ______ 47. volume ______ 43. melting point ______ 48. length ______

Question

Accepted Answer

# Brief Explanations:
Classifications are based on core chemistry concepts: heterogeneous (non-uniform) vs homogeneous (uniform) mixtures; elements (single substance), compounds (fixed composition), mixtures (variable); physical (observable without change) vs chemical (reaction-based) properties/changes; intensive (mass-independent) vs extensive (mass-dependent) properties.

# Answer:
1. H
2. O
3. O
4. H
5. O
6. H
7. H
8. O
9. O
10. O
11. E
12. C
13. M
14. C
15. M
16. M
17. C
18. E
19. C
20. M
21. P
22. P
23. C
24. C
25. P
26. C
27. P
28. P
29. P
30. P
31. P
32. P
33. C
34. P
35. P
36. C
37. P
38. P
39. C
40. C
41. E
42. I
43. I
46. I
47. E
48. E

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Answer: