Chemistry, 07.04.2020 12:00 keke6361

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A student wants to examine a substance without altering its composition. Which of the following describes a property of the substance that the student should examine?

Toxicity, because it can be observed by altering the state of the substance
Boiling point, because it can be observed by altering the state of the substance
Toxicity, because it can be observed by replacing the atoms of the substance with new atoms
Boiling point, because it can be observed by replacing the atoms of the substance with new atoms

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