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Physics, 17.09.2021 18:00 asiamuhammad6

Which statement describes heterogeneous mixtures? They are made up of two or more pure substances that are not chemically bonded together and appear non-uniform.
The substances they are composed of can only be separated chemically.
The substances they are composed of have fixed ratios between their components.
They are made up of two or more pure substances that are chemically bonded together and appear uniform.

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