In the reaction 2 H2O2(l) 2 H2O(l) + O2(g) oxygen is

[casperchen82]

Question 1

Disproportionation is a reaction in which a substance is both oxidized and reduced in the reaction. Which is a disproportionation reaction?
◦ ClO3-(aq) + 3 Cu(s) + 6 H+(aq) → Cl-(aq) + 3 Cu2+(aq) + 3 H2O(l)
◦ ClO-(aq) + Pb(OH)4-(aq) → Cl-(aq) + PbO2(s) + H2O(l) + 2 OH-(aq)
◦ Cl2(g) + 2 OH-(aq) → Cl-(aq) + ClO-(aq) + H2O(l)
◦ 6 Cl-(aq) + Cr2O72-(aq) + 14 H+(aq) → 3 Cl2(g) + 2 Cr3+(aq) + 7 H2O(l)

Question 2

In the reaction 2 H2O2(l) → 2 H2O(l) + O2(g) oxygen is
◦ both oxidized and reduced.
◦ neither oxidized nor reduced.
◦ only reduced.
◦ only oxidized.

[Amiracle]

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[casperchen82]

Thanks for the timely response, appreciate it

[sarah_brady415]

Wow, this really help