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If you place a glass rod over a burning candle, the glass turns black. What is happening

Introductory Chemistry: A Foundation | 7th Edition | ISBN: 9781439049402 | Authors: Steven S. Zumdahl, Donald J. DeCoste ISBN: 9781439049402 426

Solution for problem 2 Chapter 3

Introductory Chemistry: A Foundation | 7th Edition

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Introductory Chemistry: A Foundation | 7th Edition | ISBN: 9781439049402 | Authors: Steven S. Zumdahl, Donald J. DeCoste

Introductory Chemistry: A Foundation | 7th Edition

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Problem 2

If you place a glass rod over a burning candle, the glass turns black. What is happening to each of the following (physical change, chemical change, both, or neither) as the candle burns? Explain. a. the wax b. the wick c. the glass rod

Step-by-Step Solution:
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UNIT 1 AQUEOUS SOLUTIONS  solution- a homogenous mixture of two or more substances  solute- minority component  solvent- majority component o particles of the solute interact with solvent through intermolecular forces o unless it’s energetically unfavorable, they mix uniformly  aqueous solution- water is the solvent, and a different solid/liquid/gas is the solute  solubility-the amount of a substance that will dissolve in a given amount of a solvent  water doesn’t dissolve everything, grease is soluble in paint thinner Entropy- Nature’s tendency towards mixing  systems tend towards lower potential energy  potential energy decreases as separation increases (coulomb’s law)  formatio

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Chapter 3, Problem 2 is Solved
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Textbook: Introductory Chemistry: A Foundation
Edition: 7
Author: Steven S. Zumdahl, Donald J. DeCoste
ISBN: 9781439049402

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If you place a glass rod over a burning candle, the glass turns black. What is happening