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Answer: When aqueous KI is added gradually to mercury(II)

Chemistry | 7th Edition | ISBN: 9780618528448 | Authors: Steven S. Zumdahl ISBN: 9780618528448 174

Solution for problem 107 Chapter 15

Chemistry | 7th Edition

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Chemistry | 7th Edition | ISBN: 9780618528448 | Authors: Steven S. Zumdahl

Chemistry | 7th Edition

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Problem 107

When aqueous KI is added gradually to mercury(II) nitrate, an orange precipitate forms. Continued addition of KI causes the precipitate to dissolve. Write balanced equations to explain these observations. (Hint: reacts with to form )

Step-by-Step Solution:
Step 1 of 3

Oxidation­reduction (Redox) reactions:  reactions that involve the transfer of electrons from one substance to another. o i.e the number of electrons assigned to each atom in the reactants change  Oxidation ­ the loss of electrons. (oxidation # goes up) Reduction ­ the gain of electrons. (oxidation # goes down) o HELPFUL HINT: remember O.I.L. R.I.G  Oxidation Is Loss, Reduction Is Gain Oxidation number: [oxidation state] a method of counting electrons and assigning them to atoms.  Oxidation numbers (i.e. +2, ­2) can look similar to charges (i.e. 2+, 2­) . o Tell the difference:  Charges are written as number then sign 2+, 3­

Step 2 of 3

Chapter 15, Problem 107 is Solved
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Textbook: Chemistry
Edition: 7
Author: Steven S. Zumdahl
ISBN: 9780618528448

This textbook survival guide was created for the textbook: Chemistry, edition: 7. The full step-by-step solution to problem: 107 from chapter: 15 was answered by , our top Chemistry solution expert on 12/23/17, 04:50PM. Chemistry was written by and is associated to the ISBN: 9780618528448. This full solution covers the following key subjects: . This expansive textbook survival guide covers 22 chapters, and 2481 solutions. Since the solution to 107 from 15 chapter was answered, more than 277 students have viewed the full step-by-step answer. The answer to “When aqueous KI is added gradually to mercury(II) nitrate, an orange precipitate forms. Continued addition of KI causes the precipitate to dissolve. Write balanced equations to explain these observations. (Hint: reacts with to form )” is broken down into a number of easy to follow steps, and 35 words.

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Answer: When aqueous KI is added gradually to mercury(II)