Question

which substance is the oxidizing agent in this reaction? fe₂o₃ + 3co→2fe + 3co₂ express your answer as a chemical formula. view available hint(s) is the oxidizing agent. a chemical reaction does not occur for this question. submit previous answers incorrect; try again; 5 attempts remaining part c part d which substance is the reducing agent in this reaction? 16h⁺ + 2cr₂o₇²⁻ + c₂h₅oh→4cr³⁺ + 11h₂o + 2co₂ express your answer as a chemical formula. view available hint(s) is the reducing agent. a chemical reaction does not occur for this question.

Explanation:

Step1: Define oxidizing and reducing agents

An oxidizing agent is reduced (gains electrons) in a reaction, and a reducing agent is oxidized (loses electrons).

Step2: Analyze the first reaction ($Fe_2O_3 + 3CO

ightarrow2Fe + 3CO_2$)
In $Fe_2O_3$, iron has an oxidation state of +3. In the product $Fe$, the oxidation state is 0. Iron in $Fe_2O_3$ gains electrons and is reduced. So $Fe_2O_3$ is the oxidizing agent.

Step3: Analyze the second reaction ($16H^+ + 2Cr_2O_7^{2 -}+C_2H_5OH

ightarrow4Cr^{3+}+11H_2O + 2CO_2$)
In $C_2H_5OH$, the carbon - containing species is oxidized. The oxidation state of carbon in $C_2H_5OH$ changes as it is converted to $CO_2$. Carbon in $C_2H_5OH$ loses electrons and is oxidized. So $C_2H_5OH$ is the reducing agent.

Answer:

$Fe_2O_3$
$C_2H_5OH$