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Which of the following involves no chemical change? question 1 options: burning paper boiling water baking a cake lighting a match driving a car save
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Which polymers are most closely related? a. protein and nucleic acids b. cellulose and starch c. nucleic acids and starch d. nucleic acids and cellulose
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2.38g of black copper (ii) oxide is completely reduced by hydrogen to give copper and water. what are the masses of copper and water formed? ?
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Which of the following involves no chemical change? question 1 options: burning paper boiling wate...
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