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How many moles of HCl are needed to produce 25 moles of KCl in the presence of excess potassium permanganate?
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Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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How many moles of HCl are needed to produce 25 moles of KCl in the presence of excess potassium perm...
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