CK-12 Foundation
Ck 12: Mole Ratios
[Free Registration/Login may be required to access all resource tools.] In this learning module, students will learn how to calculate and account for the amounts of reactants and products in a given chemical reaction.
American Chemical Society
Middle School Chemistry: What Is a Chemical Reaction?
Use chemical formulas to visualize how chemical equations are balanced.
Science Education Resource Center at Carleton College
Serc: Chemical Changes: Reacting an Acid and Base
In this chemistry lab, students will investigate chemical changes that occur when acids and bases react. It is meant to introduce the concepts of chemical changes, gases have mass, conservation of mass, and balancing equations. Students...
Texas Instruments
Texas Instruments: Chemical Reactions
This activity is designed to be used a pre-test over types of chemical reactions and balancing.
Utah Education Network
Uen: Types of Chemical Reactions Jigsaw
Students will perform chemical reactions for the class to observe evidence of reactions and write equations to describe the reaction.
Alabama Learning Exchange
Alex: Equilibrium Constants
This lesson is meant to give an introduction of equilibrium constant expressions to the students. They are given balanced chemical equations and then asked to write the equilibrium constant expressions for them. The students will be...
CK-12 Foundation
Ck 12: Physical Science: Conservation of Mass in Chemical Reactions
[Free Registration/Login may be required to access all resource tools.] Explains Law of conservation of mass and why chemical equations must be balanced.
CK-12 Foundation
Ck 12: Life Science: Hearing and Balance
[Free Registration/Login may be required to access all resource tools.] What do listening to music and riding a bike have in common? It might surprise you to learn that both activities depend on your ears. The ears do more than just...
Khan Academy
Khan Academy: The Mechanics of Standing Balance
This is a 5-question quiz to help prepare for the MCAT. It uses the analogy between a standing patient and an inverted pendulum and the mechanics of standing balance.
Georgia Department of Education
Ga Virtual Learning: Ap Chemistry: Stoichiometry
Students apply new knowledge of the elements to name and write chemical formulas, write and balance chemical equations, and perform mathematical calculations about the relationships between those chemicals, using a fundamental unit in...
Other
Fun Based Learning: Chemistry: Classic Chembalancer
An exercise for students to practice balancing equations. Exercise gives one equation per page and after the students complete the problem it tells them whether their answer is correct or not. A good basic practice for students who need...
Virginia Tech
Types of Equations
After learning about and reviewing the types of chemical equations and rules for balancing, students can practice balancing equations on interactive quizzes.
University of California
Uc Davis Geo Wiki: Chemical Budgets of Oceanic Elements
To the extent that the composition of the ocean remains constant, the rate at which any one element is introduced into seawater must equal the rate of its removal. A listing of the various routes of addition and removal, together with...
CK-12 Foundation
Ck 12: Mole Ratios
[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will relate balanced chemical equations to everyday analogies, such as a recipe. They will also define stoichiometry and use mole...
BBC
Bbc: Gcse Bitesize: Chemical Calculations
You should be able to calculate the masses of reactants and products from balanced equations, and the formula of a compound from information about reacting masses.
TeachEngineering
Teach Engineering: In and Out Reactor
Students learn about material balances, a fundamental concept of chemical engineering. They use stoichiometry to predict the mass of carbon dioxide that escapes after reacting measured quantities of sodium bicarbonate with dilute acetic...
Cosmo Learning
Cosmo Learning: Junior Chemistry With Chemguy
A collection of video lectures to teach junior high students topics in chemistry. Lectures cover topics in understanding the periodic table, compounds, chemical bonding, Avogadro's number, balancing chemical equations, stoichiometry,...
ClassFlow
Class Flow: Rates of Change
[Free Registration/Login Required] This is part 4 of a 4 part series to include the nature of chemical reactions, reaction types, and balancing chemical equations.
CK-12 Foundation
Ck 12: Stoichiometric Calculations
[Free Registration/Login may be required to access all resource tools.] Based on the balanced chemical equation, students will calculate the masses or moles of reactants or products generated in a given reaction. They will also convert...
BiologyWise
Biology Wise: Balanced Photosynthesis Equation
Explains how to balance the equation for the chemical reaction that takes place in chloroplasts during photosynthesis.
Utah Education Network
Uen: Reactions!
Learners use colored marshmallows (representing atoms) to construct compounds and arrange them into a balanced chemical equation.
Wyzant
Wyzant: Reactions
A good resource on chemical reactions, organized by topic: "Examples of chemical changes," "Chemical equations of chemical reactions," "Balancing equations," "Synthesis reactions," "Decomposition reactions," "Single replacement...
Clackamas Community College
Clackamas Community College: Single Replacement Reactions
A very useful site that includes examples of replacement reactions as well as exercises for practicing balancing replacement reactions.
CK-12 Foundation
Ck 12: Stoichiometric Calculations
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will learn to calculate the amount in moles of a reactant or product from the mass of another reactant or product. They...