6. Chemical Quantities & Aqueous Reactions

Balancing Redox Reactions: Basic Solutions

Balance Redox Reaction: Basic Solution (Example)

Balance the following half-reactions. 
(d) (basic) Br2(aq) -> BrO3-(aq)

Balance each redox reaction occurring in basic aqueous solution.
c. NO2-(aq) + Al(s) ¡ NH3(g) + AlO2-(aq)

Write balanced net ionic equations for the following reactions in acidic solution. 
(b) <CHEMICAL EQUATION>

Complete and balance the following equations, and identify the oxidizing and reducing agents. (Recall that the O
atoms in hydrogen peroxide, H2O2, have an atypical oxidation state.)
(f) H2O21aq2 + ClO21aq2 ¡ ClO2-1aq2 + O21g2 
(basic solution)

Balance the following half-reactions. 
(a) (acidic) Cr2O22-(aq) -> Cr3+(aq)

Basic Redox Reactions&nbsp;generally have the presence of an OH–&nbsp;ion.

Balancing Redox Reactions in Acidic and Basic Conditions

Balance the following half-reactions. 
(d) (basic) ClO-(aq) -> Cl-(aq)

Balancing Redox Reactions Occurring in Basic Solution

Balance the following half-reactions. 
(b) (basic) Ni(OH)2(s) -> Ni2O3(s)

Complete and balance the following half-reactions. In each
case indicate whether the half-reaction is an oxidation or a
reduction.
(g) Cr1OH231s2 ¡ CrO42-1aq2 (basic solution)

Balance the redox reaction in basic solution. What is the coefficient on the hydroxide ion, and on which side of the equation does it appear? 
(a) 2 OH- in reactants 
(b) 4 OH- in products
(c) 4 OH- in reactants
(d) 3 OH- in reactants

Write balanced net ionic equations for the following reactions in acidic solution. 
(c) <CHEMICAL EQUATION>

Balance the following redox reaction in a basic solutionH2O2 (aq) + ClO2&nbsp;(aq) → ClO2-&nbsp;(aq) + O2 (g)

Write balanced net ionic equations for the following reactions in acidic solution. 
(a) <CHEMICAL EQUATION>

Balance each redox reaction occurring in basic aqueous solution.
a. MnO4-(aq) + Br-(aq) ¡ MnO2(s) + BrO3-(aq)

Gold metal is extracted from its ore by treating the crushed rock with an aerated cyanide solution. The unbalanced equation for the reaction is  
(a) Balance the equation for this reaction in basic solution.

Balancing REDOX reaction in BASIC solution

Balancing Redox Reactions: Basic Solutions Example 1

Balance the following half-reactions. 
(b) (basic) CrO42-(aq) -> Cr(OH)4-(aq)

Balance the following half-reactions. 
(c) (acidic) NO3-(aq) -> NO2(aq)

Balance a Redox Reaction (BASIC solution)

Balance the following half-reactions. 
(c) (basic) Br3+(aq) -> BiO3-(aq)

Lesson 24 - Balancing Redox Reactions In Basic Solution Ion Electron Method, Part 1

Complete and balance the following equations, and identify the oxidizing and reducing agents:
(e) MnO4-1aq2 + Br -1aq2 ¡ MnO21s2 + BrO3-1aq2 
(basic solution)

Balance the following half-reactions. 
(a) (acidic) VO2+(aq) -> V3+(aq)

Balance the half-reactions in Problem 19.42, assuming that they occur in basic solution. <QUESTION REFERENCES PROBLEM 19.43>

Balance each redox reaction occurring in basic aqueous solution.
a. H2O2(aq) + ClO2(aq) ¡ ClO2-(aq) + O2(g)

Balance each redox reaction occurring in basic aqueous solution.
b. Al(s) + MnO4-(aq) ¡ MnO2(s) + Al(OH)4-(aq)

Balance the following redox reaction in a basic solution.ClO2- (aq) → Cl-&nbsp;(aq) + ClO4-&nbsp;(aq)

Consider the unbalanced equation:  
(a) Balance the equation for this reaction in basic solution.

Balance each redox reaction occurring in basic aqueous solution.
b. Ag(s) + CN-(aq) + O2(g) ¡ Ag(CN)2-(aq)

Complete and balance the following half-reactions. In each
case, indicate whether the half-reaction is an oxidation or a
reduction.
(f) SO32-1aq2 ¡ SO42-1aq2 (basic solution)

How to Balance Redox Reaction in Basic Solution

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1. Intro to General Chemistry

2. Atoms & Elements

3. Chemical Reactions

4. BONUS: Lab Techniques and Procedures

5. BONUS: Mathematical Operations and Functions

7. Gases

8. Thermochemistry

9. Quantum Mechanics

10. Periodic Properties of the Elements

11. Bonding & Molecular Structure

12. Molecular Shapes & Valence Bond Theory

13. Liquids, Solids & Intermolecular Forces

14. Solutions

15. Chemical Kinetics

16. Chemical Equilibrium

17. Acid and Base Equilibrium

18. Aqueous Equilibrium

19. Chemical Thermodynamics

20. Electrochemistry

21. Nuclear Chemistry

22. Organic Chemistry

23. Chemistry of the Nonmetals

24. Transition Metals and Coordination Compounds

[BOOK CHEM] Clutch Version

Solutions

Solutions represent homogeneous mixtures made of 2 or more components that form a uniform composition.&nbsp;

Osmolarity

Osmolarity (ionic molarity) represents the number of moles of ions per liter of solution.&nbsp;

Gas Evolution Equations

A Gas Evolution Equation is a molecular equation that involves the creation of specific gases.&nbsp;

Molecular Equations

Molecular Equations show reacting molecules involved in a chemical reaction.&nbsp;

Complete Ionic Equations

Complete Ionic Equations show aqueous compounds as fully dissociated ions.&nbsp;

Solubility Rules

The Solubility Rules are a convenient set of guidelines to help us determine if a compound will be soluble or insoluble.

Molarity

Ever wonder how a mass amount such as moles can be converted into the volume amount of liters? Well, molarity serves as the bridge between moles and liters.&nbsp;

Electrolytes

Electrolytes are compounds that can conduct electricity once they are dissolved in a solvent.&nbsp;

Solution Stoichiometry

Solution Stoichiometry deals with stoichiometric calculations in solutions that involve volume and molarity.

Calculate Oxidation Numbers

Calculating Oxidation Numbers is the first pivotal step in understanding redox reactions.&nbsp;

Dilutions

In Dilutions, a solvent (usually water) is added to a concentrated solution.&nbsp;

Redox Reactions

Redox Reactions (oxidation-reduction reactions) involve transference of an electron(s) between reactants.

Activity Series

Activity Series is a list of single displacement reactions in order of reactivity.

Balancing Redox Reactions: Acidic Solutions

Balancing Redox Reactions requires a new approach that accounts for the transfer of electrons between reactants.

Balancing Basic Redox Reactions requires all the same steps as balancing in an acidic solution plus an additional step.