What is an oxidation-reduction reaction?
AP Chem Unit 4 Review

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Chemistry
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11th Grade - University
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Hard
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1.
FLASHCARD QUESTION
Front
Back
An oxidation-reduction (redox) reaction is a chemical reaction in which the oxidation states of one or more species change, indicating a transfer of electrons.
2.
FLASHCARD QUESTION
Front
What must occur for a reaction to be classified as an oxidation-reduction reaction?
Back
The oxidation number of two species must change.
3.
FLASHCARD QUESTION
Front
What is the definition of a chemical process?
Back
A chemical process involves the transformation of substances through chemical reactions, resulting in the formation of new substances.
4.
FLASHCARD QUESTION
Front
What is the definition of a physical process?
Back
A physical process involves changes in the state or appearance of a substance without altering its chemical composition.
5.
FLASHCARD QUESTION
Front
What characterizes an acid-base reaction?
Back
An acid-base reaction is characterized by the transfer of one or more protons (H+) between reactants.
6.
FLASHCARD QUESTION
Front
What is a conjugate acid-base pair?
Back
A conjugate acid-base pair consists of two species that differ by the presence or absence of a proton (H+).
7.
FLASHCARD QUESTION
Front
In the reaction CH₃CH₂COOH + H₂O ⇄ CH₃CH₂COO⁻ + H₃O⁺, identify the conjugate acid-base pair.
Back
The conjugate acid-base pair is CH₃CH₂COOH and CH₃CH₂COO⁻.
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