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2hcl zn zncl 2 - PowerPoint PPT Presentation

Balancing Redox Reactions

Balancing Redox Reactions. Steps :. Assign oxidation numbers Write half reactions Balance electrons to determine coefficients needed. Problem 1:. +2 -2 0 0. 2HgO ? O 2 + 2Hg. Hg +2 + 2e - ? Hg 0. Reduction. O -2 ? O 0 + 2e -. Oxidation. Problem 2:.

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Balancing Equations

Balancing Equations. Conservation of mass. - Describing Chemical Reactions. What Are Chemical Equations?. chemical formulas and other symbols instead of words to summarize a reaction. Reactants: substances that begin a reaction Products: substances formed in a reaction.

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2hcl zn zncl 2 - PowerPoint PPT Presentation

Balancing Redox Reactions

Balancing Equations