Question

name key physical property 1. observed with senses 2. determined without destroying matter chemical property 1. indicates how a substance reacts with something else 2. matter will be changed into a new substance after the reaction identify the following as a chemical (c) or physical property (p): 1. blue color 2. density 3. flammability (burns) 4. solubility (dissolves) 5. reacts with acid 6. supports combustion 7. sour taste 8. melting point 9. reacts with water 10. hardness 11. boiling point 12. luster 13. odor 14. reacts with air

Explanation:

1. Blue color can be observed with senses without changing the substance, so it's a physical property (P).
2. Density is determined without destroying matter, so it's a physical property (P).
3. Flammability involves a substance reacting and changing into new substances when burning, so it's a chemical property (C).
4. Solubility is about a substance dissolving without becoming a new substance chemically, so it's a physical property (P).
5. Reacting with acid changes the substance into new substances, so it's a chemical property (C).
6. Supporting combustion leads to a chemical reaction and new substances, so it's a chemical property (C).
7. Sour taste can be detected without a chemical change in the substance itself in the act of tasting, so it's a physical property (P).
8. Melting point is a characteristic determined without changing the substance chemically, so it's a physical property (P).
9. Reacting with water changes the substance into new substances, so it's a chemical property (C).
10. Hardness is observed without changing the substance chemically, so it's a physical property (P).
11. Boiling point is determined without a chemical change in the substance, so it's a physical property (P).
12. Luster is observed with senses without a chemical change, so it's a physical property (P).
13. Odor is detected with senses without a chemical change in the substance, so it's a physical property (P).
14. Reacting with air changes the substance into new substances, so it's a chemical property (C).

Answer:

1. P
2. P
3. C
4. P
5. C
6. C
7. P
8. P
9. C
10. P
11. P
12. P
13. P
14. C