Respuesta :
The balanced skeleton reactions are given below
2CrO₄²⁻(aq) + 3Cu(s) +8[tex]H_{2} O[/tex](l) → 2Cr(OH)₃(s) + 3Cu(OH)₂(s) + 6[tex]OH^{-}[/tex](aq)
The oxidising agent and reducing agents are Cr and Cu .
The following are involved in an basic medium's balancing redox reaction .
- The reaction should first be split into two half reactions
- Balance the atoms present in half reaction other than oxygen and hydrogen atoms .
- Add [tex]H_{2}O[/tex] on that side where number of oxygen atom is less to balance the oxygen atom .
- Add [tex]H^{+}[/tex] on another side of in which water attached to make the hydrogen atom equal.
- Add [tex]OH^{-}[/tex] ions to both sides to neutralize [tex]H^{+}[/tex] ion.
- Combine [tex]H^{+}[/tex] and [tex]OH^{-}[/tex] ion to make [tex]H_{2} O[/tex] .
- Balance the charge by adding [tex]e^{-}[/tex] .
- Now , add the two half reactions .
The species which reduces the other species in the redox reaction is called oxidizing agent . Similarly , the species which oxidize the other species in the redox reaction is called reducing agent .
To learn more about reducing agents please click here ,
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