Ch.4 - Chemical Quantities & Aqueous ReactionsSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: In which pair does the named element have the same oxidation number? (A) sulfur in H2S2O7 and in H2SO4 (B) mercury in Hg2+ and in Hg 22+ (C) oxygen in Na2O2 and in H2O (D) cobalt in Co(NH3)63+ and in Co(NO3)2

Problem

In which pair does the named element have the same oxidation number?

(A) sulfur in H2S2O7 and in H2SO4

(B) mercury in Hg2+ and in Hg 22+

(C) oxygen in Na2O2 and in H2O

(D) cobalt in Co(NH3)63+ and in Co(NO3)2