General, Organic, and Biological Chemistry (3rd Edition)
3rd Edition
ISBN: 9780134042428
Author: Laura D. Frost, S. Todd Deal
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 5.27PP
Are the substances shown in italics undergoing oxidation or reduction?
- a. Copper(II) ions in solution form solid copper metal on a surface.
- b. Aluminum metal forms aluminum oxide (A12O3).
- c. Wine (containing ethanol, CH3CH2OH) sours to vinegar (CH3COOH).
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Fuel cell is an electrochemical energy conversion device in which fuel and oxidant react to generate electricity. Which of the following statements describes the conversion of energy in fuel cell?
a. The chemical energy of a nonspontaneous reaction is used to generate electrical energy.
b. Electrical energy is supplied to ensure the completion of a spontaneous reaction.
c. The chemical energy from the oxidation of the fuel results to the production of electrical energy.
d. Electrical energy is used to drive a nonspontaneous reaction, which leads to the formation of chemical energy.
A zinc electrode is paired with a standard hydrogen electrode (SHE) to form a galvanic cell. Which of the following describes the scenario that is likely to happen?
a.
Hydrogen bubbles form in the cathode while zinc metal increases in mass in the anode.
b.
The cathode solution becomes acidic due to hydrogen ions while zinc metal dissolves in the anode.
c.
Zinc metal increases in mass in the cathode while the anode solution becomes acidic due to hydrogen ions.
d.
Hydrogen bubbles form in the cathode while zinc metal dissolves in the anode.
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6. The anodic area of a metal surface is oxidized and loses its electrons to the cathodic
area. At the cathodic area the oxygen reduces and reacts with the oxidized metal to
form metal oxide, so called
a. Cathode
c. Iron
d. Rust
b. Electrolyte
7. When an ionic substance is dissolved in water or melted then the ions are free to
move.
a. True
b. False
8. A process of converting the ions of a compound in a liquid state into their reduced
or oxidiz I state by passing an
: current through
compound.
a. Electrolytes
b. Electrocution
c. Cannot be determined
c. Electrolysis
d. Electricity
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Chapter 5 Solutions
General, Organic, and Biological Chemistry (3rd Edition)
Ch. 5 - When vinegar (CH3COOH) and baking soda (NaHCO3)...Ch. 5 - In your own words, define free energy change, G....Ch. 5 - Classify the following as exothermic or...Ch. 5 - Prob. 5.4PPCh. 5 - Prob. 5.5PPCh. 5 - Classify the following as spontaneous or...Ch. 5 - Prob. 5.7PPCh. 5 - Prob. 5.8PPCh. 5 - Prob. 5.9PPCh. 5 - Prob. 5.10PP
Ch. 5 - a. How does increasing the temperature increase...Ch. 5 - a. Describe activation energy for a chemical...Ch. 5 - Why does the rate of a chemical reaction decrease...Ch. 5 - Prob. 5.14PPCh. 5 - Enzymes increase the rate of a biological chemical...Ch. 5 - Prob. 5.16PPCh. 5 - Prob. 5.17PPCh. 5 - Prob. 5.18PPCh. 5 - Categorize the following reactions as synthesis,...Ch. 5 - Categorize the following reactions as synthesis,...Ch. 5 - Prob. 5.21PPCh. 5 - Prob. 5.22PPCh. 5 - Write the products and balance the following...Ch. 5 - Prob. 5.24PPCh. 5 - Prob. 5.25PPCh. 5 - List the differences between general chemical...Ch. 5 - Are the substances shown in italics undergoing...Ch. 5 - Prob. 5.28PPCh. 5 - Prob. 5.29PPCh. 5 - Prob. 5.30PPCh. 5 - Prob. 5.31PPCh. 5 - Prob. 5.32PPCh. 5 - Prob. 5.33PPCh. 5 - Prob. 5.34PPCh. 5 - Prob. 5.35PPCh. 5 - Prob. 5.36PPCh. 5 - Prob. 5.37PPCh. 5 - Write the main product of hydration for the...Ch. 5 - Methane (a.k.a. natural gas) can react with oxygen...Ch. 5 - Prob. 5.40APCh. 5 - Which reaction occurs at a faster rate, an...Ch. 5 - Prob. 5.42APCh. 5 - Prob. 5.43APCh. 5 - Two curves for the same reaction are shown in the...Ch. 5 - Prob. 5.45APCh. 5 - Draw and label a reaction energy diagram for an...Ch. 5 - Prob. 5.47APCh. 5 - Prob. 5.48APCh. 5 - Write the products that would result from the...Ch. 5 - Prob. 5.50APCh. 5 - Prob. 5.51APCh. 5 - Prob. 5.52APCh. 5 - Prob. 5.53APCh. 5 - Prob. 5.54APCh. 5 - Prob. 5.55APCh. 5 - Identify the reactant that is oxidized and the...Ch. 5 - Prob. 5.57APCh. 5 - Write the products of the following reactions:Ch. 5 - Prob. 5.59APCh. 5 - Acetylsalicylic acid (aspirin) can be synthesized...Ch. 5 - Prob. 5.61APCh. 5 - Fill in the missing organic produce for the...Ch. 5 - Prob. 5.63APCh. 5 - Prob. 5.64APCh. 5 - How do low-carb diets work? We store glucose...Ch. 5 - Prob. 5.66CPCh. 5 - Prob. 5.67CPCh. 5 - Prob. 5.68CPCh. 5 - Prob. 5.69CPCh. 5 - Which reaction has the larger activation energy?Ch. 5 - Prob. 1IA.2QCh. 5 - A catalyst speeds up a chemical reaction by...Ch. 5 - Prob. 1IA.4QCh. 5 - Examine your sketch from question 3. Does a...Ch. 5 - Prob. 1IA.6QCh. 5 - Prob. 2IA.1QCh. 5 - Prob. 2IA.2QCh. 5 - Prob. 2IA.3QCh. 5 - One of the reactions in the data set is a single...Ch. 5 - Prob. 2IA.5QCh. 5 - Categorize the following reactions as a synthesis,...Ch. 5 - Prob. 3IA.1QCh. 5 - Prob. 3IA.2QCh. 5 - Prob. 3IA.3QCh. 5 - Prob. 3IA.4QCh. 5 - Prob. 3IA.5QCh. 5 - Prob. 1ICCh. 5 - Find out how unsaturated fats are saturated and...
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