Chemistry, 07.12.2021 04:20, williamnason123

The green substances on a copper square, penny, and the statue of Liberty are not the same thing. Although they are all green, and they are all soluble in water, they have different melting points, densities, and solubility in alcohol. Substances have properties. These have different properties, so they have to be different Substances. How could the explanation be improved?

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The green substances on a copper square, penny, and the statue of Liberty are not the same thing. Al...