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Learn the toughest concepts covered in Chemistry with step-by-step video tutorials and practice problems by world-class tutors

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Jules Bruno

Ch.1 - Chemical Tools: Experimentation & Measurement

Ch.2 - Atoms, Molecules & Ions

Ch.3 - Mass Relationships in Chemical Reactions

BONUS: Lab Techniques and Procedures

BONUS: Mathematical Operations and Functions

Ch.4 - Reactions in Aqueous Solution

Ch.5 - Periodicity & Electronic Structure of Atoms

Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory

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Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure

Ch.9 - Thermochemistry: Chemical Energy

Ch.10 - Gases: Their Properties & Behavior

Ch.11 - Liquids & Phase Changes

Ch.12 - Solids and Solid-State Materials

Ch.13 - Solutions & Their Properties

Ch.14 - Chemical Kinetics

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Ch.17 - Applications of Aqueous Equilibria

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Balancing Redox Reactions: Acidic Solutions

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Chapter 19, Problem 42c

Classify each of the following unbalanced half-reactions as either an oxidation or a reduction. (c) Cr(s) → Cr³⁺ (aq)

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Chapter 19, Problem 42c

Classify each of the following unbalanced half-reactions as either an oxidation or a reduction. (c) Cr(s) → Cr3+ (aq)

Classify each of the following unbalanced half-reactions as either an oxidation or a reduction. (c) Cr(s) → Cr³⁺ (aq)