Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 13 - Solutions - Exercises - Problems - Page 479: 23


a) No b) No c) Yes d) Yes

Work Step by Step

A solution is a homogeneous mixture of two or more substances. a) Sand and water do not form a homogenous mixture. They are heterogeneous since sand could be easily filtered out of the water. Therefore they do not form a solution. b) Oil and water also do not form a homogenous mixture. When we mix oil with water, they form two separate layers. Therefore they do not form a solution. c) Salt and water form a homogenous mixture since salt completely dissolves in water. Therefore they form a solution. d) Sterling silver cup is an alloy of a metal with silver. Since they form a homogenous mixture, they are a solution.
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