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2 cards from this section. Quick, good the night before a test.
Assign the oxidation state of sulfur in H2SO4.
Recall how to sum oxidation states in compounds.
Is the reaction 2H2 + O2 → 2H2O a redox reaction?
Check who loses and gains electrons.
What is the oxidation state of chlorine in HCl?
Refer to the common oxidation states of halogens.
True or False: All redox reactions involve oxygen.
Consider examples involving metals.
Calculate the oxidation numbers in H3PO4 and justify your process.
Start with the known oxidation states of H and O to work backwards.
If 2Fe + 3Cl2 → 2FeCl3 is a redox reaction, identify all oxidized and reduced species.
Check the oxidation states before and after the reaction.
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