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Which of the following statements describe physical properties and which describe chemical properties? (a) iron has a tendency to rust. (b) rainwater in industrialized regions tends to be acidic. (c) hemoglobin molecules have a red color. (d) when a glass of water is left out in the sun, the water gradually disappears. (e) carbon dioxide in air is converted to more complex molecules by plants during photosynthesis.
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Which of the following statements describe physical properties and which describe chemical propertie...
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