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Deduce the chemical formula of potassium mangnate The answer is kmno4 but i ddont get it it says K=1 Mn=+7 and O=-2

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter20: Chemistry Of The Metals

Section: Chapter Questions

Problem 14QAP

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Deduce the chemical formula of potassium mangnate The answer is kmno4 but i ddont get it it says K=1 Mn=+7 and O=-2

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