Need help with chemical reactions, molecular structures, or exam prep? Get clear, step-by-step guidance to build confidence and succeed in chemistry.

General Chemistry

Jules

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Physics with Calculus

Patrick

Struggling with evolution, ecosystems, or the human body? Master key biology concepts with clear explanations that make learning easier.

General Biology

Jason

Confused by balance sheets, income statements, or debits and credits? Get accounting concepts broken down step-by-step to build confidence for assignments and exams.

Financial Accounting

Brian

From memory and learning to personality and behavior, explore key psychology concepts and theories in a way that makes class discussions, labs, and tests easier.

Introduction to Psychology

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Microeconomics

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Anatomy & Physiology

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College Algebra

Callie

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Organic Chemistry

Johnny

From Punnett squares to gene expression and DNA replication, genetics concepts are explained clearly to make problem solving more straightforward.

Genetics

Kylia

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GOB Chemistry

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Introduction to Chemistry

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Microbiology

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Cell Biology

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Trigonometry

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Precalculus

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Calculus

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Business Calculus

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Introductory Statistics

Colleen

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Statistics for Business

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Biochemistry

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Macroeconomics

Learn topics such as nutrition, physical activity, mental health, stress management and healthy lifestyle choices.

Personal Health

From macronutrients and vitamins to metabolism and diet planning, nutrition concepts are explained clearly and connected to real-life examples.

Nutrition

Bruce

Learn how medical terms are built and what they mean by breaking them into simple parts. This course helps you understand and use the language of healthcare with confidence.

Medical Terminology

Explore how human societies are organized, how social relationships shape behavior, and how cultural, economic, and political forces influence everyday life.

Introduction to Sociology

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

Beginning Algebra

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

Intermediate Algebra

Learn the toughest concepts covered in Beginning & Intermediate Algebra with step-by-step video tutorials and practice problems by world-class tutors

Beginning & Intermediate Algebra

Confused by cells, genetics, or how life works? Explore the building blocks of biology with simple, engaging explanations that turn complex science into concepts you'll actually understand.

Introductory Biology

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Human Biology

Physics with Algebra

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Algebra & Trigonometry

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Liberal Arts Math

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Quantitative Reasoning

Learn the type of accounting that focuses on providing financial information to internal stakeholders within an organization

Managerial Accounting

Tyler

Learn the guidelines that govern how financial transactions are recorded and reported

Principles of Accounting

From whole numbers and integers to equations and graphing, develop a strong understanding of foundational math concepts with clear, step-by-step support every step of the way.

Prealgebra

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Master the fundamentals of algebra as you solve equations, analyze patterns, and work with mathematical relationships through guided, step-by-step instruction.

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Digital Marketing Analytics

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General Chemistry I: Key Concepts and Problem-Solving Strategies (Sample Exam 3 Study Guide)

Study Guide - Learn with Videos

Rate of Reaction

Energy Diagrams

Kinetic Molecular Theory

Chemistry Gas Laws

The Ideal Gas Law

Chemical Equilibrium

The Equilibrium Constant

Stoichiometry

Limiting Reagent

Percent Yield

Solutions

Molarity

Naming Ionic Compounds

Ions (Simplified)