5. In which of the following molecules does hydrogen have an oxidation state of -1? a. CaH2 b. H₂O C. CH4 d. H₂ e. NH3 6. What are the oxidation numbers in the compound H2SO4? a. H+1, S = -6, O= +2 b. H-1, S = +6, O = -2 c. H = +1, S = -6, O = -2 d. H+1, S = +6, 0 = -2 A13+ + 3e → Al(s) E° = -1.66 V Cr3+ + 3e→ Cr(s) E° = -0.73 V

5. In which of the following molecules does hydrogen have an oxidation state of -1? a. CaH2 b. H₂O C. CH4 d. H₂ e. NH3 6. What are the oxidation numbers in the compound H2SO4? a. H+1, S = -6, O= +2 b. H-1, S = +6, O = -2 c. H = +1, S = -6, O = -2 d. H+1, S = +6, 0 = -2 A13+ + 3e → Al(s) E° = -1.66 V Cr3+ + 3e→ Cr(s) E° = -0.73 V

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter4: Stoichiometry Of Chemical Reactions

Section: Chapter Questions

Problem 10E: A novel process for obtaining magnesium from sea water involves several reactions. Write a balanced...

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