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Concept explainers
(a)
Interpretation:
Oxidation number of
Concept Introduction:
Oxidation number is integer value allotted to every element. It is formal charge occupied by atom if all of its bonds are dissociated heterolytically. Below mentioned are rules to assign oxidation numbers to various elements.
1. Elements present in their free state have zero oxidation number.
2. Oxidation number of hydrogen is generally
3. Oxidation number of oxygen is
4. Metals have positive oxidation numbers.
5. Negative oxidation numbers are assigned to most electronegative element in covalent compounds.
6. Sum of oxidation numbers of different elements in neutral atom is zero.
7. Sum of oxidation numbers of various elements in polyatomic ion is equal to charge present on ion.
(b)
Interpretation:
Oxidation number of
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Oxidation number of
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Oxidation number of
Concept Introduction:
Refer to part (a).
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Chapter 17 Solutions
FOUND.OF COLLEGE CHEMISTRY
- What does it mean for a substance to be oxidized? The term “oxidation” originally came from substances reacting with oxygen gas. Explain why a substance that reacts with oxygen gas will always be oxidized.arrow_forwardDetermine the oxidation number of each element in each of the following compounds: (a) HCN (b) OF2 (c) ASCl3arrow_forward. Balance each of the following half-reactions. a.I(aq)I2(s)b.O2(g)O2(s)c.P4(s)P3(s)d.Cl2(g)Cl(aq)arrow_forward
- Balance each of the following oxidationreduction reactions by using the oxidation states method. a. C2H6(g) + O2(g) CO2(g) + H2O(g) b. Mg(s) + HCl(aq) Mg2+(aq) + Cl(aq) + H2(g) c. Co3+ (aq) + Ni(s) Co2+(aq) + Ni2+(aq) d. Zn(s) + H2SO4(aq) ZnSO4(aq) + H2(g)arrow_forward. In each of the following reactions, identify which element is oxidized and which is reduced by assigning oxidation states. a.2Br2O3(s)+6Cl2(g)4BCl3(l)+3O2(g)b.GeH4(g)+O2(g)Ge(s)+2H2O(g)c.C2H4(g)+Cl2(g)C2H4Cl2(l)d.O2(g)+2F2(g)2OF2(g)arrow_forward. Assign oxidation sates to all of the atoms in each of the following: a. NH3 b.CO C. CO2 d. NF3arrow_forward
- Balance each of the following oxidationreduction reactions by nsing the oxidation states method. a. Cl2(g) + Al(s) Al3+(aq) + Cl(aq) b. O2(g) + H2O(l) + Ph(s) Ph(OH)2(s) c. H+(aq) + MnO4(aq) + Fe2+(aq) Mn2+(aq) + Fe3+(aq) + H2O(l)arrow_forwardAn aqueous solution of KBr is placed in a beaker with two inert platinum electrodes. When the cell is attached to an external source of electrical energy, electrolysis occurs. (a) Hydrogen gas and hydroxide ion form at the cathode. Write an equation for the half-reaction that occurs at this electrode. (b) Bromine is the primary product at the anode. Write an equation for its formation.arrow_forward. For each of the following unbalanced oxidation-reduction chemical equations, balance the equation by inspection, and identify which species is the reducing agent. a.Fe(s)+O2(g)Fe2O3(s)b.Al(s)+Cl2(g)AlCl3(s)c.Mg(s)+P4(s)Mg3P2(s)arrow_forward
- For each of the following balanced half-reactions, determine whether an oxidation or reduction is occurring. (a) Fe3++3eFe (b) CrCr3++3e (c) MnO42MnO4+e (d) Li++eLiarrow_forwardWhat is a half-reaction? Why must the number of electrons lost in the oxidation half reaction equal the number of electrons gained in the reduction half-reaction? Summarize briefly the steps in the hall-reaction method for balancing redox reactions. What two items must be balanced in a redox reaction (or any reaction)?arrow_forwardComplete and balance the following oxidation-reduction reactions, which give the highest possible oxidation state for the oxidized atoms. (a) Al(s)+F2(g) (b) Al(s)+CuBr2(aq) (single displacement) (c) P4(s)+O2(g) (d) Ca(s)+H2O(l) (products are a strong base and a diatomic gas)arrow_forward
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781285199030Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
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