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In the reaction 2H2 + O2 → 2H2O, which element is oxidized?
In the reaction 2H2 + O2 → 2H2O, which element is oxidized?
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Practice Questions
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Q1
In the reaction 2H2 + O2 → 2H2O, which element is oxidized?
H
O
H2O
None
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Oxygen (O) is oxidized as it goes from 0 in O2 to -2 in H2O.
Questions & Step-by-step Solutions
1 item
Q
Q: In the reaction 2H2 + O2 → 2H2O, which element is oxidized?
Solution:
Oxygen (O) is oxidized as it goes from 0 in O2 to -2 in H2O.
Steps: 7
Show Steps
Step 1: Identify the reactants in the reaction, which are 2H2 (hydrogen gas) and O2 (oxygen gas).
Step 2: Write down the products of the reaction, which is 2H2O (water).
Step 3: Determine the oxidation states of each element in the reactants and products.
Step 4: In the reactant O2, oxygen has an oxidation state of 0 because it is in its elemental form.
Step 5: In the product H2O, oxygen has an oxidation state of -2.
Step 6: Compare the oxidation states: oxygen goes from 0 in O2 to -2 in H2O.
Step 7: Since the oxidation state of oxygen decreases, it is being reduced, which means hydrogen is being oxidized.
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