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Which one of the following statements is true? Both chemical and physical changes can involve a change in appearance. Neither chemical nor physical changes involve a change in appearance. Only physical
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Which one of the following statements is true? Both chemical and physical changes can involve a change in appearance. Neither chemical nor physical changes involve a change in appearance. Only physical changes involve a change in appearance. Only chemical changes involve a change in appearance.

User Ygrek
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Both chemical and physical changes can involve a change in appearance. This is because, during a chemical change, the substance may change color. A physical change that changes color would be, for example, adding food coloring to water.
User Nisanth Reddy
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