To classify the substances accurately, you would typically provide descriptions or images of each substance. However, I can help you understand how to categorize them based on their characteristics:
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Element: A pure substance that cannot be broken down into simpler substances by chemical means. Examples include helium (He), gold (Au), and iron (Fe).
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Compound: A substance formed when two or more elements are chemically bonded together in a fixed ratio. Examples include water (H2O), carbon dioxide (CO2), and sodium chloride (NaCl).
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Mixture of Elements: A physical combination of two or more elements, each maintaining its own properties. Examples include a mix of hydrogen (H) gas and oxygen (O) gas.
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Mixture of Compounds: A physical combination of two or more compounds. Each compound keeps its chemical properties. An example would be a mixture of salt (NaCl) and sugar (C12H22O11).
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Mixture of Elements & Compounds: A combination of both elements and compounds. For instance, a mixture of oxygen gas (O2) and water (H2O).
If you provide specific details or visual descriptors for the substances you are asking about, I would be able to assist you in categorizing them accordingly.