SOLUTION: Physical and chemical properties - Studypool - Free Printable

Let's solve the problem step by step.

We are given a list of properties and asked to classify each as either a physical property or a chemical property, based on the definitions provided:

- Physical properties: Observable without changing the substance (e.g., color, shape, density, melting point).
- Chemical properties: Describe how a substance reacts with others, resulting in a chemical change (e.g., flammability, reactivity with acid).

---

Here is the list of properties from the image (reconstructed based on visible text):

1. Boiling point
2. Melting point
3. Can react with a base
4. Odor
5. Flammability
6. Solubility
7. Color
8. Conductivity
9. State
10. Reacts with a base to form water
11. Reacts with acid to form hydrogen
12. Reacts with water to form a gas
13. Freezing point
14. Density
15. Supports combustion

Now let’s classify each:

---

✔ Classification:

| Property | Physical Property? | Chemical Property? | Reason |
|--------|---------------------|--------------------|-------|
| 1. Boiling point | ✔ | ✘ | Changes state without altering composition; physical change |
| 2. Melting point | ✔ | ✘ | Phase change; no new substance formed |
| 3. Can react with a base | ✘ | ✔ | Indicates reactivity; involves chemical change |
| 4. Odor | ✔ | ✘ | Sensory observation; does not alter substance |
| 5. Flammability | ✘ | ✔ | Ability to burn; involves combustion (chemical change) |
| 6. Solubility | ✔ | ✘ | Dissolving may be physical (no new substance formed) |
| 7. Color | ✔ | ✘ | Observable without changing substance |
| 8. Conductivity | ✔ | ✘ | Electrical behavior; physical property |
| 9. State | ✔ | ✘ | Solid, liquid, gas — physical state |
| 10. Reacts with a base to form water | ✘ | ✔ | Chemical reaction producing new substances |
| 11. Reacts with acid to form hydrogen | ✘ | ✔ | Chemical reaction (e.g., metal + acid → H₂ gas) |
| 12. Reacts with water to form a gas | ✘ | ✔ | New substance formed; chemical change |
| 13. Freezing point | ✔ | ✘ | Phase change; physical |
| 14. Density | ✔ | ✘ | Mass/volume; measurable without changing substance |
| 15. Supports combustion | ✘ | ✔ | Involves burning/oxidation; chemical process |

---

Final Answer Table:

| Property | Physical Property | Chemical Property |
|--------|-------------------|-------------------|
| 1. Boiling point | ✔ | ✘ |
| 2. Melting point | ✔ | ✘ |
| 3. Can react with a base | ✘ | ✔ |
| 4. Odor | ✔ | ✘ |
| 5. Flammability | ✘ | ✔ |
| 6. Solubility | ✔ | ✘ |
| 7. Color | ✔ | ✘ |
| 8. Conductivity | ✔ | ✘ |
| 9. State | ✔ | ✘ |
| 10. Reacts with a base to form water | ✘ | ✔ |
| 11. Reacts with acid to form hydrogen | ✘ | ✔ |
| 12. Reacts with water to form a gas | ✘ | ✔ |
| 13. Freezing point | ✔ | ✘ |
| 14. Density | ✔ | ✘ |
| 15. Supports combustion | ✘ | ✔ |

---

Summary:

- Physical Properties: #1, #2, #4, #6, #7, #8, #9, #13, #14
- Chemical Properties: #3, #5, #10, #11, #12, #15

This classification helps distinguish between observable traits and reactive behaviors of substances.