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These links are original IntoChemistry companion explanations and practice, not reproduced textbook chapters. The chapters assigned in your course may vary by instructor or semester.

Chapter-by-chapter resources

Chapter 1: Structure and Bonding

Bonding, Lewis structures, atomic orbitals, formal charge and resonance.

• Lewis structures
• Formal charge
• Resonance foundations

Chapter 2: Acids and Bases

Organic acid–base reasoning, conjugate pairs and factors affecting relative acidity.

• Organic chemistry foundations
• Acid–base equilibrium review
• Organic Acids and Bases: pKa and Equilibrium

Chapter 3: Introduction to Organic Molecules and Functional Groups

Recognize functional groups and interpret molecular structures.

• Organic chemistry foundations review
• Functional-group evidence from IR

Chapter 4: Alkanes

Conformations, Newmans, cyclohexane chairs and ring flips.

• Conformations learning center
• Newman projection practice
• Ring flips

Chapter 5: Stereochemistry

Chirality, enantiomers and R/S configurations.

• Assigning R/S
• Stereochemistry exam review
• Further reading: citrus-scent stereochemistry myth

Chapter 6: Understanding Organic Reactions

Reaction arrows, bond changes, nucleophiles, electrophiles and mechanisms.

• Mechanism learning center
• Mechanism practice studio

Chapter 7: Alkyl Halides and Nucleophilic Substitution

SN1/SN2 competition, solvents, leaving groups, kinetics and inversion.

• SN1 vs SN2 decision guide
• SN2 mechanism
• SN1 mechanism

Chapter 8: Alkyl Halides and Elimination Reactions

E1/E2 selection, stereochemistry and anti-periplanar geometry.

• E2 mechanism
• Cyclohexane E2
• SN/E exam review

Chapter 9: Alcohols, Ethers, and Related Compounds

Alcohol reactions, ether formation, epoxides and synthesis.

• Williamson ether synthesis
• Epoxide ring opening
• Synthesis planning practice
• Alcohol Reactions: Oxidation, Dehydration and Substitution

Chapter 10: Alkenes and Addition Reactions

Regiochemistry, stereochemistry and alkene reactions.

• Regioselective alkene reactions
• Organic reaction atlas
• Alkene Addition: Predict the Product

Chapter 11: Alkynes and Synthesis

Triple-bond chemistry and retrosynthetic planning.

• Browse relevant reactions
• Multistep synthesis practice
• Alkyne Reactions and Selective Reduction

Chapter 12: Oxidation and Reduction

Alcohol oxidation, carbonyl reduction and redox reagents.

• Alcohol oxidation and carbonyl reduction
• Organic synthesis roadmaps

Spec A: Mass Spectrometry

Analyze masses and fragmentation with complementary evidence.

• Spectroscopy challenge lab
• Related analytical methods

Spec B: Infrared Spectroscopy

Read IR bands and functional-group evidence.

• College-level IR guide
• IR spectrum quality
• Interpret instrument evidence

Spec C: Nuclear Magnetic Resonance Spectroscopy

Chemical shifts, signal integration, splitting and structure evidence.

• ¹H NMR basics
• Spectroscopy challenges

Chapter 13: Radical Reactions (bridge / if assigned)

Radical substitution and radical reaction pathways; Smith Chapter 13 may be covered in Organic I or II.

• Radical reactions
• Reaction reference

Other study options

For more focused problem practice use Mechanism Practice, Stereochemistry Outcomes and Organic Exam Prep. The Chemistry Blog remains separate, with relevant research articles appearing as optional reading.