Balancing Redox Reactions
Chemistry ⇒ Redox Reactions and Electrochemistry
Balancing Redox Reactions starts at 10 and continues till grade 12.
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See sample questions for grade 10
Assign the oxidation number to carbon in CO_2.
Assign the oxidation number to chlorine in ClO_3^-.
Assign the oxidation number to nitrogen in NO_3^-.
Assign the oxidation number to sulfur in H_2SO_4.
Balance the following redox reaction in acidic solution: Cr_2O_7^{2-} + SO_3^{2-} \rightarrow Cr^{3+} + SO_4^{2-}
Balance the following redox reaction in acidic solution: H_2O_2 + MnO_4^- \rightarrow O_2 + Mn^{2+}
Balance the following redox reaction in acidic solution: IO_3^- + I^- \rightarrow I_2
Balance the following redox reaction in acidic solution: MnO_4^- + Fe^{2+} \rightarrow Mn^{2+} + Fe^{3+}
Balance the following redox reaction in acidic solution: NO_3^- + Cu \rightarrow NO + Cu^{2+}
Balance the following redox reaction in basic solution: BrO_3^- + S_2O_3^{2-} \rightarrow Br^- + SO_4^{2-}
Balance the following redox reaction in basic solution: ClO^- + I^- \rightarrow Cl^- + IO_3^-
Balance the following redox reaction in basic solution: MnO_4^- + C_2O_4^{2-} \rightarrow MnO_2 + CO_3^{2-}
Explain why balancing redox reactions is important in chemistry.
In the context of redox reactions, what does the term 'half-reaction' mean?
In the reaction 2H_2O_2 \rightarrow 2H_2O + O_2, which element is both oxidized and reduced?
In the reaction: 2Al + 3CuSO_4 \rightarrow Al_2(SO_4)_3 + 3Cu, which element is oxidized?
What is the first step in balancing a redox reaction using the half-reaction method?
