Which of the following is a clue of a chemical change? A. balls of wax form when melted wax is poured into ice water B. gas bubbles form in boiling water C. a gas forms when vinegar and baking soda are

Which of the following is a clue of a chemical change? A. balls of wax form when melted wax is poured into ice water B. gas bubbles form in boiling water C. a gas forms when vinegar and baking soda are mixed D. iron changes color when heated

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Which of the following is a clue of a chemical change? A. balls of wax form when melted wax is poured into ice water B. gas bubbles form in boiling water C. a gas forms when vin…

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