Final answer:
The characteristic that is not a physical property of copper metal is "Cu reacts with HNO3 to form Cu(NO3)2" because it describes a chemical reaction, which is a chemical property.
Step-by-step explanation:
The question is asking to identify the characteristic among the options that does not represent a physical property of copper metal. Physical properties are those that can be observed without changing the substance into another substance, whereas chemical properties involve the substance's ability to undergo a specific chemical change.
- Cu(s) conducts heat - a physical property
- Cu reacts with HNO3 to form Cu(NO3)2 - a chemical property
- Copper metal melts at 1085°C - a physical property
- Copper metal conducts electricity - a physical property
- Cu(s) has an orange color - a physical property
Therefore, the characteristic that is not a physical property of copper metal is "Cu reacts with HNO3 to form Cu(NO3)2" as it describes a chemical change.