2 H2O2(aq) → 2 H2O(l) + O2(g) ΔH° = −196 kJ/mol_rxn The decomposition of H2O2(aq) is represented by — Electrochemistry Chemistry Question
Question
2 H2O2(aq) → 2 H2O(l) + O2(g) ΔH° = −196 kJ/mol_rxn
The decomposition of H2O2(aq) is represented by the equation above. A student monitored the decomposition of a 1.0 L sample of H2O2(aq) at a constant temperature of 300. K and recorded the concentration of H2O2 as a function of time. The results are given in the table below.
[VISUAL]
Which of the following identifies the element(s) being oxidized and reduced in the reaction?
A.
Hydrogen is oxidized and oxygen is reduced.
B.
Oxygen is oxidized and hydrogen is reduced.
C.✓ Correct
Oxygen is both oxidized and reduced.
D.
No elements are oxidized or reduced; the reaction is not a redox reaction.
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