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Chemistry | 12th Edition | ISBN: 9780078021510 | Authors: Raymond Chang; Kenneth Goldsby
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Answer: Referring to the Chemistry in Action essay on page

Chapter 4, Problem 4.164

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QUESTION:

Referring to the Chemistry in Action essay on page 156, answer the following questions: (a) Identify the precipitation, acid-base, and redox processes. (b) Instead of calcium oxide, why dont we simply add sodium hydroxide to seawater to precipitate magnesium hydroxide? (c) Sometimes a mineral called dolomite (a mixture of CaCO3 and MgCO3) is substituted for limestone to bring about the precipitation of magnesium hydroxide. What is the advantage of using dolomite?

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QUESTION:

Referring to the Chemistry in Action essay on page 156, answer the following questions: (a) Identify the precipitation, acid-base, and redox processes. (b) Instead of calcium oxide, why dont we simply add sodium hydroxide to seawater to precipitate magnesium hydroxide? (c) Sometimes a mineral called dolomite (a mixture of CaCO3 and MgCO3) is substituted for limestone to bring about the precipitation of magnesium hydroxide. What is the advantage of using dolomite?

ANSWER:

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The carbonates of magnesium and calcium are  and .

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