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17 Nov 2019
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Which of the following is a redox reaction? HBr (aq) + KOH (aq) rightarrow H_2 O (l) + KBr (aq) SO_3 (g) + H_2 O (l) rightarrow H_2 SO_4 (aq) HBr (aq) + Na_2 S (aq) rightarrow NaBr (aq) + H_2 S (g) NH_4^+ (aq) + 2 O_2 (g) rightarrow H_2 O (l) + NO_3^- (aq) + 2 H^+ (aq) None of the above What is the reducing agent in the following reaction? Zn + 2 MnO_2 + 2 H_2 O rightarrow Zn(OH)_2 + 2 MnO(OH) Zn MnO_2 H_2 O Zn(OH)_2 MnO(OH) Which of the following statements is true? An oxidized species gains electrons A reducing agent gains electrons. An oxidizing agent gains electrons All of the above are true.
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Which of the following is a redox reaction? HBr (aq) + KOH (aq) rightarrow H_2 O (l) + KBr (aq) SO_3 (g) + H_2 O (l) rightarrow H_2 SO_4 (aq) HBr (aq) + Na_2 S (aq) rightarrow NaBr (aq) + H_2 S (g) NH_4^+ (aq) + 2 O_2 (g) rightarrow H_2 O (l) + NO_3^- (aq) + 2 H^+ (aq) None of the above What is the reducing agent in the following reaction? Zn + 2 MnO_2 + 2 H_2 O rightarrow Zn(OH)_2 + 2 MnO(OH) Zn MnO_2 H_2 O Zn(OH)_2 MnO(OH) Which of the following statements is true? An oxidized species gains electrons A reducing agent gains electrons. An oxidizing agent gains electrons All of the above are true.
Sixta KovacekLv2
18 Oct 2019