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9.4 Pre-Class Lecture duration 10 minutes 24 seconds 9.4 Pre-Class Lecture 9.4 Pre-Class Lecture	9.4 Pre-Class Lecture oxidation electrons charge reaction compound reduction oxygen reactions copper barium electron sulfur ion hydrogens half reactants hydrogen side zinc oxygens From Leena Nabulsi 0 likes 22 plays 0
8.3 Pre-Class Lecture duration 11 minutes 35 seconds 8.3 Pre-Class Lecture 8.3 Pre-Class Lecture	8.3 Pre-Class Lecture moles molarity kcl yield mole step reaction impurities weight percent grams nitrate lead zinc volume molar concentration calculation solution rest From Leena Nabulsi 0 likes 23 plays 0
5.1 Pre-Class Lecture duration 6 minutes 52 seconds 5.1 Pre-Class Lecture 5.1 Pre-Class Lecture	5.1 Pre-Class Lecture ion ions oxygen minus clo charge structures chlorate bond structure lewis zinc copper calcium metal transition cat names nitrite nitrate From Leena Nabulsi 0 likes 32 plays 0