Question

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

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

Explanation:

Physical properties can be observed or measured without changing the substance's chemical identity. Chemical properties describe how a substance reacts with other substances to form new substances. Blue color, density, solubility, luster, hardness, boiling - point, melting - point, and odor are physical properties as they can be determined without altering the substance chemically. Reacting with acid, supporting combustion, flammability, reacting with water, and reacting with air are chemical properties as they involve a chemical change in the substance.

Answer:

1. P (blue color is a physical property)
2. P (density is a physical property)
3. P (flammability is a chemical property)
4. P (solubility is a physical property)
5. C (reacting with acid is a chemical property)
6. C (supporting combustion is a chemical property)
7. P (sour taste is a physical property)
8. P (melting point is a physical property)
9. C (reacting with water is a chemical property)
10. P (hardness is a physical property)
11. P (boiling point is a physical property)
12. P (luster is a physical property)
13. P (odor is a physical property)
14. C (reacting with air is a chemical property)