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Choose the letter of the correct answer. 1. Which is statement is INCORRECT? a. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. b. Reduction is a process in which an atom gains an electron and therefore decreases (or reduces its oxidation number). c. Oxidation is a process in which an atom gains an electron and therefore increases its oxidation number. d. An electron-donating species which tends to hand over electrons can be referred to as a reducing agent. 2. What chemical process must always accompany a reduction process? a. oxidation b. balancing reaction 3. What is the oxidation number of any element in the free or uncombined state? а. О h +1 c. reduction d. half-reaction с. -1 d t?

Choose the letter of the correct answer. 1. Which is statement is INCORRECT? a. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. b. Reduction is a process in which an atom gains an electron and therefore decreases (or reduces its oxidation number). c. Oxidation is a process in which an atom gains an electron and therefore increases its oxidation number. d. An electron-donating species which tends to hand over electrons can be referred to as a reducing agent. 2. What chemical process must always accompany a reduction process? a. oxidation b. balancing reaction 3. What is the oxidation number of any element in the free or uncombined state? а. О h +1 c. reduction d. half-reaction с. -1 d t?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Ace It! Choose the letter of the correct answer. 1. Which is statement is INCORRECT? a. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. b. Reduction is a process in which an atom gains an electron and therefore decreases (or reduces its oxidation number). c. Oxidation is a process in which an atom gains an electron and therefore increases its oxidation number. d. An electron-donating species which tends to hand over electrons can be referred to as a reducing agent. 2. What chemical process must always accompany a reduction process? c. reduction d. half-reaction a. oxidation b. balancing reaction 3. What is the oxidation number of any element in the free or uncombined state? а. О с. -1 b. +1 d. +2 4. What is the sum of the oxidation number of NO,? а. О C. -1 b. +1 d. +2 5. What is the oxidation number of Zinc in ZnH2? а. О C. -1 b. +1 d. +2
Transcribed Image Text:Ace It! Choose the letter of the correct answer. 1. Which is statement is INCORRECT? a. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. b. Reduction is a process in which an atom gains an electron and therefore decreases (or reduces its oxidation number). c. Oxidation is a process in which an atom gains an electron and therefore increases its oxidation number. d. An electron-donating species which tends to hand over electrons can be referred to as a reducing agent. 2. What chemical process must always accompany a reduction process? c. reduction d. half-reaction a. oxidation b. balancing reaction 3. What is the oxidation number of any element in the free or uncombined state? а. О с. -1 b. +1 d. +2 4. What is the sum of the oxidation number of NO,? а. О C. -1 b. +1 d. +2 5. What is the oxidation number of Zinc in ZnH2? а. О C. -1 b. +1 d. +2
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