Question

a physical property is observed with the senses and can be determined without destroying the object. for example, color, shape, mass, length, density, specific heat and odor are all examples of physical properties.
a chemical property indicates how a substance reacts with something else. when a chemical property is observed, the original substance is changed into a different substance. for example, the ability of iron to rust is a chemical property. the iron has reacted with oxygen and the original iron metal is gone. it is now iron oxide, a new substance. all chemical changes include physical changes.
classify the following properties as either chemical or physical by putting a check in the appropriate column.

1. red color
2. density
3. flammability
4. solubility
5. reacts with acid to form hydrogen
6. supports combustion
7. bitter taste
8. melting point
9. reacts with water to form a gas
10. reacts with a base to form water
11. hardness
12. boiling point
13. can neutralize a base
14. luster
15. odor

physical science if8767

Explanation:

Step1: Recall property definitions

Physical properties are observed without changing the substance, chemical properties involve a change in the substance.

Step2: Analyze each property

• Red color: Observed without changing substance, physical.
• Density: Measured without chemical change, physical.
• Flammability: Substance changes during burning, chemical.
• Solubility: Substance's state changes but not chemically, physical.
• Reacts with acid to form hydrogen: Chemical change, chemical.
• Supports combustion: Chemical reaction occurs, chemical.
• Bitter taste: Observed without chemical change, physical.
• Melting point: Phase - change without chemical reaction, physical.
• Reacts with water to form a gas: Chemical change, chemical.
• Reacts with a base to form water: Chemical change, chemical.
• Hardness: Measured without chemical change, physical.
• Boiling point: Phase - change without chemical reaction, physical.
• Can neutralize a base: Chemical reaction, chemical.
• Luster: Observed without chemical change, physical.
• Odor: Observed without chemical change, physical.

Answer:

Property	Physical Property	Chemical Property
2. density	√
3. flammability		√
4. solubility	√
5. reacts with acid to form hydrogen		√
6. supports combustion		√
7. bitter taste	√
8. melting point	√
9. reacts with water to form a gas		√
10. reacts with a base to form water		√
11. hardness	√
12. boiling point	√
13. can neutralize a base		√
14. luster	√
15. odor	√