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Which statement describes a physical property related to the particles that make up a material? A. An iron nail has a reddish color because iron atoms on its surface combine with oxygen atoms B. A fruit has a sour taste because some of the compounds that make it up are acids. C. Salt crystals are hard and brittle because they are made up of atoms that combine by ionic bonding. D. A vegetable has a bitter taste because some of the compounds that make it up are bases.
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