high viscosity at higher temperatures
unreactive with other substances
liquid at high temperatures
organic compound
poor conductor of electricity
Based on the provided chemical and physical properties of the unknown substance. It would be MOST useful as a(n)
A machinery lubricant.
B heat insulator in a home.
C internal combustion engine fuel.
D electrical conductor in a computer circuit.
Based on the provided chemical and physical properties of the unknown substance. It would be MOST useful as a(n)
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The correct answer is A machinery lubricant.
Explanation: The properties listed—high viscosity at higher temperatures, unreactive with other substances, liquid at high temperatures, and poor conductivity of electricity—are characteristics that make the substance suitable for use as a lubricant. Lubricants need to maintain their viscosity at elevated temperatures and should be chemically stable to avoid reactions with machinery components. In contrast, the other options require properties that this substance does not exhibit, such as good electrical conductivity or appropriate reactivity for fuel.