Question

instructions: classify each of the following properties of matter as physical(p) or chemical(c).

1. color
2. density
3. burns easily (flammable)
4. not affected by acids
5. boils at 450 °c
6. reacts violently with chlorine
7. good conductor of heat
8. dissolves readily in water
9. melts at 145 °c
10. malleable

Explanation:

To solve this, we classify each property as physical (P) or chemical (C). Physical properties can be observed without changing the substance's chemical identity; chemical properties involve chemical reactions.

21. Color

Color is observable without altering the substance’s chemical makeup.

Answer:

P

22. Density

Density is a physical property (measured without chemical change).