General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 21 - Chemistry of the Main-Group Elements - Questions and Problems - Page 931: 21.119

Answer

Please see the work below.

Work Step by Step

We know that the required oxidation states are given as a. The oxidation state of H in $CaH_2$ is -1. b. The oxidation state of H in $H_2O$ is +1. c. The oxidation state of C in $CH_4$ is -4. D. The oxidation state of S in $H_2SO_4$ is +6.
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