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Module 2
Acids and redox
Redox reactions
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Created by
Jiya
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Cards (6)
What changes in oxidation numbers during redox reactions?
Oxidation
numbers change
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How does the oxidation number change when an electron is lost?
It increases by
1
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What happens to the oxidation number when an electron is gained?
It decreases by
1
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How can you determine if a redox reaction has occurred?
Compare
oxidation numbers
before and after the reaction
An increase indicates oxidation
A decrease indicates
reduction
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What types of substances typically undergo redox reactions?
Metals
and
acids
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What is an example of a redox reaction involving a metal and an acid?
A reaction producing a salt and
hydrogen gas
Metal atoms lose electrons and are
oxidized
Hydrogen ions
gain electrons and are
reduced
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