Which of these properties is a physical property of aluminum. aluminum rust when it is exposed to moisture in air. aluminum is a good conductor of heat. aluminum reacts with oxygen to form aluminum oxide. aluminum reacts with hydrochloric acid to give off aluminum chloride and hydrogen gas

The answer is: Aluminum is a good conductor of heat.

Explanation:

A physical property describes a characteristic of an element, which can be measured and in which there is no chemical change associated with the element, such as density, boiling point, viscosity, among others, The aluminum rust is a process where  aluminum undergoes an oxidation process, so is in the reaction with oxygen to produce aluminum oxyde. An the reaction with hydrochloric acid is also a chemical process.

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