Is it true that materials can be pure or impure?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
A pure substance is one that contains only one element or compound. Impure materials can be elemental mixtures, compound mixtures, or element and compound mixtures. A pure substance has the same chemical composition every time. Ammonia, water, and baking soda are examples of pure substances. Impure substances are made up of various elements and compounds. Muddy water, salad, and salt in water are examples of impure substances.

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