CHEM101: Balancing Chemical Reactions

Watch this video to see examples of how to systematically balance a chemical equation.

Source: Khan Academy, https://youtu.be/TUuABq95BBM
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License.

Last modified: Monday, March 4, 2024, 1:06 PM

Course Syllabus

Course Syllabus

Unit 1: Matter and Measurements

1.1: Matter

Extensive and Intensive Properties

Physical and Chemical Properties

Solids, Liquids, and Gases

Density and Its Uses

Calculations Using the Density of an Unknown Liquid

How Do We Classify Matter?

Physical and Chemical Changes

1.2: Measurement and Notation

Units and Dimensions in Chemistry

Introduction to Scientific Notation

Practice: Converting Units

Uncertainty Is Certain!

Significant Figures

Using Significant Figures

Significant Figure Practice

Unit 1 Assessment

Unit 1 Assessment

Unit 2: The Atom

2.1: Atoms and Elements

Atoms, Elements, and the Nucleus

The Nuclear Atom and Atomic Mass

2.2: Avogadro's Number and Moles

Avogadro's Number and the Mole

Atoms to Moles

2.3: Atomic Theories

Quanta: A New View of the World

Light, Particles, and Waves

The Bohr Model

The Quantum Mechanical Model of the Atom

The Quantum Atom

2.4: The Periodic Table of the Elements

Shells, Subshells, and Orbitals

Electron Configurations

The Aufbau Principle

Atomic Electron Structures: Aufbau

Valence Electrons

Periodic Properties of the Elements

Unit 2 Assessment

Unit 2 Assessment

Unit 3: Bonding

3.1: Chemical Bonds

What are Covalent and Ionic Bonds?

Ionic, Covalent, and Metallic Bonds

Predicting Bond Type – Electronegativity

Models of Chemical Bonding

Drawing Dot Structures and Lewis Diagrams

Exceptions to the Octet Rule

Resonance Hybrids and Dot Structures

Formal Charge and Dot Structures

The Shared-Electron Covalent Bond: Lewis Dot-Structures and the Octet Rule

Interactions Between Molecular Units

3.2: Molecular Structure

Molecular Geometry

VSEPR Practice

The Hybrid Orbital Model

Polar Covalence

Unit 3 Assessment

Unit 3 Assessment

Unit 4: Chemical Formulas and Equations

4.1: Chemical Formulas

Chemical Formulas and Their Arithmetic

Empirical and Molecular Formulas

Formula from Mass Composition

Calculating Mass Percent

Molecular and Empirical Formulas from Percent Composition

Chemical Nomenclature

4.2: Stoichiometry and Limiting Reagents

Chemical Equations and Calculations

Calculating Molar Mass and Number of Moles

Balancing Chemical Reactions

Stoichiometry

Stoichiometry Example Problems

Calculating Amounts of Reactants and Products

Unit 4 Assessment

Unit 4 Assessment

Unit 5: States of Matter