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Solved: Consider a galvanic cell consisting of a magnesium

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 18.99 Chapter 18

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 18.99

Consider a galvanic cell consisting of a magnesium electrode in contact with 1.0 M Mg(NO3)2 and a cadmium electrode in contact with 1.0 M Cd(NO3)2. Calculate E for the cell, and draw a diagram showing the cathode, anode, and direction of electron flow.

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Topic: Weathering Takes longer in dry environments; accelerates in wet environments Types of Weathering: 1) Mechanical/Physical: breakup of rock into smaller rocks a. Frost Wedging: involves expansion and contraction of water in rock crack due to freezing and thawing b. Frost heaving: Up thrust of sediment or soil due to the freezing of wet soil beneath c. Salt crystal growth: involves buildup of salts on rock surfaces through evaporation. Salt weakens the rock, making it vulnerable d. Exfoliation: sheets of rock flake away due to seasonal temperature changes or by the expansion of rock due to unloading 2) Chemical: dissolves the rock a. Oxidation: oxygen chemically combines with metallic iron to form iron oxides, losses in elections. (color changes) b. Carbonation: caused by rain water that has absorbed atmospheric carbon dioxide c. Acid rain: human cause. Precipitation of strong mineral acids, primarily sulfur dioxide and nitrogen oxides, originating in factories. 3) Differential: two different rock types weather at different rates Mass wasting: movement of rock, sediment and soil downslope due to force of gravity Happens when downward force of gravity overcomes the resisting force of the slope’s material shearing strength Colluvium – unconsolidated sediment that accumulates at the base of slope Types of mass wasting: 1) Rock fall 2) Soil creep 3) Landslides 4) Slump 5) Earth flow 6) Mudflow 7) Avalanches

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Chapter 18, Problem 18.99 is Solved
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Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

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Solved: Consider a galvanic cell consisting of a magnesium