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: 30


a) Mixture b) Compound c) Mixture d) Mixture

Work Step by Step

a) Air is a mixture of many compounds, predominantly nitrogen ($N_2$) and oxygen ($O_2$). b) Mineral form of Calcium Fluoride ($CaF_2$). c) Brass is a metal alloy of copper (Cu) and zinc (Zn); therefore, it is a mixture. d) 18-carat gold is an alloy of gold: 18 out of 24 parts in mass with the rest being impurities and other metals. Therefore, it's a mixture.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.