A chemist takes four samples of a substance. Each sample has a different flammability. What can the chemist conclude about the substance?AIt is made by humans.BIt occurs naturally on Earth.CIt contains rare elements.DIt is not a pure substance.
Question
A chemist takes four samples of a substance. Each sample has a different flammability. What can the chemist conclude about the substance?AIt is made by humans.BIt occurs naturally on Earth.CIt contains rare elements.DIt is not a pure substance.
Solution
The chemist can conclude that the substance is not a pure substance. This is because a pure substance would have consistent properties, such as flammability, across all samples. The fact that each sample has a different flammability suggests that the substance is not pure, and therefore, contains more than one type of particle. This conclusion is not related to whether the substance is made by humans, occurs naturally on Earth, or contains rare elements.
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