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Chemistry
Online Chemistry video lessons to help students understand critical Chemistry concepts so that they can improve test and quiz scores and more easily complete homework assignments.
Introduction to Chemistry
- Scientific Method Steps
- Chemistry Definition
- Dimensional Analysis
- Tips for Counting and Predicting Sig Figs
- Solving Sig Figs Involving Addition and Subtraction
- Solving Sig Figs Involving Multiplication and Division
- Scientific Units
- Scientific Notation
- Significant Figures
Matter
- Physical Matter Properties - Chemical Matter Properties
- States of Matter
- Changes in Matter
- Conservation of Mass
- Law of Definite Proportions - Law of Multiple Proportions
- Mixtures
- Elements and Compounds
- Identifying Chemical versus Physical Changes
The Atom
- Atomic Structure
- Quantum Numbers
- Atomic Emission Spectra
- Atomic Number - Isotopes
- Atomic Mass
- Atomic Orbitals
- Orbital Diagrams
- Electron Configuration
- Exceptions to Electron Configuration
- Valence Electrons
- Electron Configurations for Transition Metals and Their Ions Problem
- Energy in Hydrogen Emission Spectrum Problem
- Isotopes, Isoelectronics and Isomers
- Tips on Deciding if an Atom is Excited
- Electromagnetic Spectrum
- Photoelectric Effect
- Planck's Constant
The Periodic Table
- Periodic Table Overview
- s-Block Elements
- p-Block Elements
- d-Block Elements - f-Block Elements
- Transition Metals - Inner Transition Metals
- Boron Family - Carbon Family - Nitrogen Family
- Oxygen Family
- Halogens
- Noble Gases
- Electronegativity
- Ionization Energy - Periodic Trends
- Atomic Radii - Ionic Radii
- Remembering Common Ions for Transition Metals
- Tips on Electron Configuration
- Understanding the Trend of Atomic vs Ionic Radii
Chemical Bonds
- Ionic Bond
- Ionic Compound Properties
- Metallic Bond
- Covalent Bonds
- Hydrates
- Lewis Electron Dot Diagram
- Polarity
- Naming Covalent Compounds
- Naming Ionic Compounds
- Hybridization
- Intermolecular Forces
- VSPER Model
- Tips for Determining Bond Type
- Tips for Determining Hybridization
- Tips for Drawing Lewis Electron Dot Diagrams
- Tips for Identifying Intermolecular Forces
- Tips for Naming Covalent Compounds
- Tips for Naming Ionic Compounds
- Tips for Writing Formulas of Ionic Compounds
Chemical Reactions
- Chemical Equations
- Balancing Chemical Equations
- Synthesis Reactions
- Combustion Reactions
- Decomposition Reaction
- Single Replacement Reaction
- Double Replacement Reactions
- Net Ionic Equation
- Types of Reactions
- Chemistry Mole
- Molar Mass
- Law of Conservation of Mass
- Empirical Formula - Molecular Formula
- Stoichiometry
- Percent Yield
- Limiting Reactants
- How to Balance Reactions
- How to Solve Single Replacement Reactions
- Net Ionic Reactions
- Predicting Products
- Types of Reactions
Kinetic-Molecular Theory
- Three States of Matter
- Phase Change
- Phase Diagrams
- Boiling Point
- Vapor Pressure
- Gases
- Avogadro's Principle
- Dalton's Law
- Graham's Law
- Boyle's Law
- Charles Law
- Gay Lussac's Law
- Combined Gas Law
- Ideal Gas Law
- 5 Tips on How to Solve Gas Law Problems
- Tips on Finding the Units of k Instantly
- Tips on How to Manipulate the Ideal Gas Law
- Tips on when to use Differential Rate Laws and Integrated Rate Laws
Chemical Solutions
- Osmosis
- Types of Solutions
- Solvation
- Molarity - Molality
- Colligative Properties
- Vapor Pressure Lowering
- Boiling Point Elevation
- Freezing Point Depression
- Colloids - Suspensions
- Beer's Law
- Boiling Point Elevation & Freezing Point Depression
- Solving Stoichiometry Problems Using Millimoles
- Tips About Osmotic Pressure
- Tips for Classifying Electrolytes
- Tips for Dilutions
Chemical Reaction Rates
- Collision Theory
- Reaction Rates Factors
- Reaction Mechanism
- Reaction Rate Laws
- Reaction Rate Problems
- Energy Diagrams
- Determining Order of a Reaction Using a Graph
- Factors Affecting Collision Based Reaction Rates
- Factors Affecting Homogeneous Reactions
- Rates of Disappearance and Appearance
- Tips for Figuring Out What a Rate Law Means
- Tips on Differentiating Between a Catalyst and an Intermediate
- Understanding Energy Diagrams
Chemical Equilibrium
- Chemical Equilibrium Definition
- Heterogeneous Equilibrium - Homgeneous Equilibrium
- Le Chatelier's Principle
- Equilibrium Changes
- Solubility Equilibrium
- Equilibrium Constants from Initial Concentrations
- Equilibrium Constants When Manipulating Equations
- Tips for Converting to Kp from Kc
- Tips for Determining Direction Shifts in Reactions
- Tips for Le Chateliers Principle
- Tips for Writing Equilibrium Constant Expressions
Acids and Bases
- Acid and Base Properties
- Strength of Acids and Bases
- Salts
- Buffered Solutions
- pH and pOH
- Bronsted-Lowry Model
- Conjugate Acids and Bases
- Equilibrium Systems
- Naming Acids
- Tips for Acid-Base Net Ionic Equations
- Tips for Calculating pH and pOH and More
- Tips for Conjugate Acid and Base Formulas
- Tips for Identifying Acid and Base Strength
- Tips for IDing if a Solution Is a Buffer
- Tips for Making a Buffer via Neutralization
Electrochemistry
- Oxidation Reduction Reactions - Redox
- Half-reactions
- Voltaic Cells
- Chemistry Corrosion
- Electrolysis
- Oxidation Number Method
- Balancing Redox Reactions Using Oxidation Number Method
- Balancing Redox Using Half-Reaction Method
- Determining What is Oxidized or Reduced
- How Many Electrons Are Transferred in Redox Equations
- Tips for Approximating Delta G from Cell Potential
- Tips for Assigning Oxidation Numbers
- Tips for Determining Oxidation Numbers
- Tips for Using the Nernst Equation
- Understanding Redox Reactions
Organic Chemistry
- Hydrocarbons
- Alkanes
- Naming Alkanes
- Alkenes-Alkynes
- Naming Alkenes-Naming Alkynes
- Aromatic Hydrocarbon
- Isomers- Stereoisomers
- Functional Groups
- Tips on Ranking Melting Points of Different Hydrocarbons
- Tips on Recognizing Structural Isomers
Biochemistry
- Chemistry Carbohydrates
- Fats and Lipids
- Proteins
- Nucleic Acids
- Determining if a R-Group in an Amino Acid Is Polar or Nonpolar
- Tips for Making Proteins from DNA
Nuclear Chemistry
- Nuclear Reactions
- Radioactivity
- Beta Decay
- Alpha Decay
- Electron Capture
- Nuclear Stability
- Transmutation
- Half-life
- Fission
- Fusion
- Tips About Nuclear Fusion and Nuclear Fission
- Tips for Half-Life Calculations
- Tips for Nuclear Radiation Equations
Thermochemistry
- Specific Heat
- Bomb Calorimeters
- Enthalpy
- Thermochemical Equation
- Hess's Law
- Spontaneous Process
- Heat of Formation
- Gibbs Free Energy
- Heat of Fusion - Heat of Vaporization
- Deciding if a Reaction is Spontaneous
- Tips on Deciphering and Interpreting Delta H
- Understanding the Difference between Delta H and Delta S
- Tips on Understanding the Difference Between Calorimeters
- Tips on When to Use Specific Heat
- Conservation of Energy
- Second Law of Thermodynamics
- Entropy