Essential Chemistry for IGCSE - Chemical Reactions (Section 1 - No. 11)
What is the role of hydrogen (H2) in the following reaction: CuO(s) + H2(g) → Cu(s) + H2O(g)?
Reducing agent
Oxidizing agent
Catalyst
Inert reactant
Explanation
Hydrogen donates electrons, therefore it is the reducing agent.
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