physical and chemical properties and changes\nname test key\nphysical property\n1. observed with senses\n2…
physical and chemical properties and changes\nname test key\nphysical property\n1. observed with senses\n2. determined without destroying matter\nchemical property\n1. indicates how a substance reacts with something else\n2. matter will be changed into a new substance after the reaction\nidentify the following as a chemical (c) or physical property (p):\n1. blue color\n2. density\n3. flammability (burns)\n4. solubility (dissolves)\n5. reacts with acid\n6. supports combustion\n7. sour taste\n8. melting point\n9. reacts with water\n10. hardness\n11. boiling point\n12. luster (shiny/not shiny)\n13. odor\n14. reacts with air
Answer
Explanation:
Step1: Recall physical property definition
Physical properties are observed with senses and determined without destroying matter.
Step2: Recall chemical property definition
Chemical properties indicate how a substance reacts with something else and matter is changed into a new substance after the reaction.
Step3: Analyze each property
- Blue color: Observed with eyes, no chemical change, P.
- Density: Measured without changing substance, P.
- Flammability: Substance changes when burns, C.
- Solubility: Just dissolving, no new substance formed, P.
- Reacts with acid: New substances formed, C.
- Supports combustion: Chemical - reaction involved, C.
- Sour taste: Observed with taste - buds, no chemical change, P.
- Melting point: Change of state without new substance, P.
- Reacts with water: New substances may form, C.
- Hardness: Measured without chemical change, P.
- Boiling point: Change of state without new substance, P.
- Luster: Observed with eyes, no chemical change, P.
- Odor: Observed with nose, no chemical change, P.
- Reacts with air: Chemical reaction occurs, C.
Answer:
- C
- C
- P
- P
- C
- P
- P
- P
- P
- C