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2 cards from this section. Quick, good the night before a test.
What is a reducing agent?
Think about the transfer of electrons in chemical reactions.
Provide an example of a reaction where hydrogen acts as a reducing agent.
Consider metal oxides and hydrogen's role.
What is the role of hydrogen in the reaction CuO + H₂ → Cu + H₂O?
Think about what happens to the oxygen in the reaction.
True or False: Hydrogen is a reducing agent because it gains oxygen.
How does a reducing agent function?
Explain the differences in environmental impact when using hydrogen versus carbon as reducing agents in metal extraction.
Consider the by-products of both processes.
Given the equation Fe₂O₃ + 3H₂ → 2Fe + 3H₂O, calculate the moles of hydrogen needed to reduce 0.5 moles of iron(III) oxide.
Use the stoichiometry from the balanced equation.
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