Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Skill 27.3 Balance redox reactions

Redox reactions may always be written as two half-reactions, a reduction halfreaction with electrons as a reactant and an oxidation half-reaction with electrons as a product. [Pg.293]

For example, the redox reactions considered in the previous skill  [Pg.293]

An additional (non-redox) reaction, 2F +2H 2HF, achieves the final products for the second reaction. [Pg.293]

Determining whether a chemical equation is balanced requires an additional step for redox reactions because there must be a charge balance. For example, the [Pg.293]

Redox reactions must be balanced to observe the Law of Conservation of Mass. This process is a little more complicated than balancing other reactions because the number of electrons lost must equal the number of electrons gained. Balancing redox reactions, then, conserves not only mass but also charge or electrons. It can be accomplished by slightly varying our balancing process. [Pg.294]


Please visit http //elsevierdirect.eom/companions/9780120885305 for brief tutorials on assignment of oxidation numbers and methods for balancing redox reactions. Both skills are required for mastery of the remainder of the materials presented in this chapter. [Pg.174]

Equations for redox reactions are sometimes difficult to balance. Use the steps in Skills Toolkit 2 below to balance redox equations for reactions in acidic aqueous solution. An important step is to identify the key ions or molecules that contain atoms whose oxidation numbers change. These atoms are the starting points of the unbalanced half-reactions. For the reaction of zinc and hydrochloric acid, the unbalanced oxidation and reduction half-reactions would be as follows ... [Pg.627]


See other pages where Skill 27.3 Balance redox reactions is mentioned: [Pg.293]    [Pg.293]    [Pg.141]    [Pg.141]   


SEARCH



Balance reactions

Balanced redox reaction

Reaction balanced

Reactions balancing

Redox balance

Redox reactions balancing

© 2024 chempedia.info