Asked by jack
2. What is the reduction half-reaction for the following unbalanced redox equation?
Cr2O72– + NH4+ Cr2O3 + N2
A.) Cr2O3 -> Cr2O7^2–
*B.) Cr2O72– -> Cr2O3
C.) NH4+ -> N2
D.) N2 -> NH4+
3. Which oxidation-reduction reactions are best balanced by the half-reaction method?
A.) covalent reactions
B.) acid-base reactions
*C.) ionic reactions
D.) intermolecular reactions
Thank you.
Cr2O72– + NH4+ Cr2O3 + N2
A.) Cr2O3 -> Cr2O7^2–
*B.) Cr2O72– -> Cr2O3
C.) NH4+ -> N2
D.) N2 -> NH4+
3. Which oxidation-reduction reactions are best balanced by the half-reaction method?
A.) covalent reactions
B.) acid-base reactions
*C.) ionic reactions
D.) intermolecular reactions
Thank you.
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