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Question
Write a balanced half-reaction for the reduction of CrO42-(aq) to Cr(OH)3(s) in a basic solution.
A.CrO42-(aq) + 3 OH-(aq) + 3 e- Cr(OH)3(s) + 2 O2(g)
B.CrO42-(aq) + 3 H+(aq) + 3 e- Cr(OH)3(s)
C.CrO42-(aq) + 3 H+(aq) Cr(OH)3(s) + 2 e-
D.CrO42-(aq) + 4 H2O(
) + 3 e- Cr(OH)3(s) + 5 OH-(aq)
E.CrO42-(aq) + 3 OH-(aq) Cr(OH)3(s) + 2 O2(g)
Answer
This answer is hidden. It contains 2 characters.
Related questions
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Which equation represents the number of atoms in a body-centered cubic unit cell?
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All of the following relationships are true EXCEPT
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Calculate DrG for the combustion of benzene at 325 K.2 C6H6() + 15 O2(g) 12 CO2(g) + 6 H2O()Species DfH (kJ/mol) S (J/Kmol)C6H6() 49.0 173.3O2(g) 0 205.1CO2(g) -393.5 213.7H2O() -285.8 67.0A.-6386 kJ/mol-rxnB.-6078 kJ/mol-rxnC.-7251 kJ/mol-rxnD.-8611 kJ/mol-rxnE.+1431 kJ/mol-rxn
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If a chemical reaction is exothermic, but not spontaneous, which of the following must be true?
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