question 8

consider the following chemical reaction:

$\text{fe}_2\text{o}_3 + 3\text{cl}_2 \
ightarrow 2\text{fe} + 3\text{cl}_2\text{o}$

what is oxidized and what is reduced in this reaction?

oxygen is reduced and iron is oxidized.
iron is reduced and chlorine is oxidized.
none. this is not a redox reaction!
chlorine is reduced and oxygen is oxidized.
chlorine is reduced and iron is oxidized.

Question

question 8

consider the following chemical reaction:

$\text{fe}_2\text{o}_3 + 3\text{cl}_2 \
ightarrow 2\text{fe} + 3\text{cl}_2\text{o}$

what is oxidized and what is reduced in this reaction?

oxygen is reduced and iron is oxidized.
iron is reduced and chlorine is oxidized.
none. this is not a redox reaction!
chlorine is reduced and oxygen is oxidized.
chlorine is reduced and iron is oxidized.

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "tutor", "mastery_adaptive_brevity" ], "needs_drawing": false, "concepts_used": [ "Oxidation State Rules", "Oxidation Number Calculation" ], "new_concepts": [ "Redox Identification", "Oxidized and Reduced Species" ], "current_concepts": [ "Oxidation State Rules", "Oxidation Number Calculation", "Redox Identification", "Oxidized and Reduced Species" ] } ## Assign oxidation states to reactants Using the *Oxidation State Rules* and *Oxidation Number Calculation* knowledge points $$ \begin{aligned} &\text{In } \text{Fe}_2\text{O}_3: \text{O} = -2, \quad \text{Fe} = +3\ &\text{In } \text{Cl}_2: \text{Cl} = 0 \end{aligned} $$ ## Assign oxidation states to products Using the *Oxidation State Rules* and *Oxidation Number Calculation* knowledge points $$ \begin{aligned} &\text{In } \text{Fe}: \text{Fe} = 0\ &\text{In } \text{Cl}_2\text{O}: \text{O} = -2, \quad \text{Cl} = +1 \end{aligned} $$ ## Identify oxidized and reduced species Using the *Oxidation State Rules* and *Oxidation Number Calculation* knowledge points $$ \begin{aligned} &\text{Fe: } +3 ightarrow 0 \quad (\text{decrease in oxidation state} \implies \text{reduced})\ &\text{Cl: } 0 ightarrow +1 \quad (\text{increase in oxidation state} \implies \text{oxidized})\ &\text{O: } -2 ightarrow -2 \quad (\text{no change}) \end{aligned} $$

Oxygen is reduced and iron is oxidized.

Iron is reduced and chlorine is oxidized.

None. This is not a redox reaction!

Chlorine is reduced and oxygen is oxidized.

Chlorine is reduced and iron is oxidized.

{ "subject": "Natural Science", "question_type": "Multiple Choice", "knowledge_point": [ "Natural Science", "Chemistry", "Redox Reactions" ] }

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Assign oxidation states to reactants

Assign oxidation states to products

Identify oxidized and reduced species

Answer: