Answered: When hydrogen reacts with calcium…

When hydrogen reacts with calcium metal, what are the oxidation numbers of the calcium and hydrogen in the CaH2 product? Ca(s) + H2(g) --> CaH2(s) -2 and +1 +2 and -1 +2 and +1 O +1 and -2

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter21: Chemistry Of The Nonmetals

Section: Chapter Questions

Problem 13QAP

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Question

When hydrogen reacts with calcium metal, what are the oxidation numbers of the calcium and hydrogen in the CaH2 product?
Ca(s) + H2(g) --> CaH2(s)
-2 and +1
+2 and -1
+2 and +1
O +1 and -2

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