Which element is oxidized in this reaction?
Zno+C →Zn + Co
Enter the chemical symbol of the element.
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C is oxidized.
Correct
Carbon gets oxidized in the process of reducing zinc. Zinc gets reduced in the process of oxidizing carbon.
Part B
Which substance is the oxidizing agent in this reaction?
Zno+C →Zn + Co
Express your answer as a chemical formula.
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Part C
Which element is reduced in this reaction?
Cr₂O₇² +3HNO₂+5H+→ 2Cr³+ 3NO₃ +4H₂O
Enter the chemical symbol of the element.
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Cr is reduced
Correct
Nitrogen gets oxidized in the process of reducing chromium. Chromium gets reduced in the process of oxidizing nitrogen.
Part D
Which substance is the reducing agent in this reaction?
Cr₂O₇² +3HNO₂+5H+→ 2Cr³+ 3NO₃ +4H₂O
Express your answer as a chemical formula.
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