Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 1 Basic Concepts of Chemistry - Study Questions - Page 21b: 24

Answer

A) Chemical B) Chemical C) Chemical D) Physical

Work Step by Step

A) Ions are merged back into the salt (If it was a separation of sugar from water, it would be physical). B) Chemical reaction. C) Formation of an oxide on the outermost layer. D) No chemical reaction occurs.
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