Curated OER
Balancing Worksheet
In this balancing equations worksheet, students balance 17 chemical equations by placing the proper coefficient in front of the different chemical formulas. State of matter of each chemical compound is listed.
Curated OER
Chemical Reactions
Students work in groups to define chemistry vocabulary including the terms reactants, products, exothermic and endothermic. They then combine the group definitions to arrive at a consensus definition for the class. Students also listen...
Chem4kids
Chem4 Kids: Symbols in Chemical Equations
Chem4Kids! provides an overview of the symbols representing numerical values in chemical equations. Each symbol is defined and described.
Dartmouth College
Dartmouth College: Qualitative Analysis of Anions
"In this experiment, you will observe the reactions of some simple salts, analyze common household chemicals, and identify an unknown sample by testing its reactivity."
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Balancing Chemical Equations
An interactive simulation with weights and scales that teaches about balancing chemical equations and conservation of mass. This simulation can either be downloaded or played online and includes handouts, lesson plans, and additional...
Dartmouth College
Dartmouth College: Chem Lab: Natural Salt Solutions 1: Ion Exchange
In this experiment, you will concentrate on understanding the chemistry of ion exchange and estimate the capacity of an ion exchange column from your observations.
Dartmouth College
Dartmouth College: Acids, Bases, and Buffers 1: Monoprotic and Polyprotic Acids
In this experiment, you will explore the behavior of the monoprotic acid (acetic acid) and the polyprotic acid (phosphoric acid). By titrating, you will examine the acid and conjugate base species present across the pH scale and the...
Dartmouth College
Dartmouth College: Chem Lab: Chemical Kinetics 1
In this experiment, you will determine the rate law and confirm the mechanism of the reaction between cyclohexanone and iodine. Requires Java and QuickTime plug-ins to access some features.
Dartmouth College
Dartmouth College: Chem Lab: Chemical Kinetics 2
This lab further analyzes the results of the experiments carried out in Chemical Kinetics 1. In addition, you will carry out experiments to determine the temperature dependence of the reaction rate constant. Requires Java plug-in.
Dartmouth College
Dartmouth College: Chem Lab: Spectra of Conjugated Dyes & Beer's Law
In the first part of this lab, you will measure the absorption spectra of two conjugated dyes and compare the results to the theoretical predictions of a particle-in-a-box model. In the second part of the experiment, you will identify...
Dartmouth College
Dartmouth College: Chem Lab: Coordination Chemistry 3.2
In this experiment, you will study the reaction between your cobalt complex and the nitrite ion. The nitrite ion can exchange with a water ligand and the mechanism of this ligand exchange will be investigated. Requires Java plug-in.
Dartmouth College
Dartmouth College: Chem Lab: Coordination Chemistry: Kinetics of Ligand Exchange
In this experiment, you will complete the study of the mechanism of ligand exchange. The reaction will be followed colorimetrically and the rates of exchange and ligand isomerization will be measured. Requires Java plug-in.
Dartmouth College
Dartmouth College: Chem Lab: Coordination Chemistry 3.1: Acid/base Analysis
In this experiment, you will examine the acidity of your coordination complex's water ligand. You will determine the acid dissociation constant of the complex by titrating it with a base. There are eight weeks of experiments in this series.
CK-12 Foundation
Ck 12: Chemical Equations
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will describe chemical reactions using word equations and know the correct symbols to use in order to write skeleton...
CK-12 Foundation
Ck 12: Net Ionic Equations
[Free Registration/Login may be required to access all resource tools.] Students write net ionic equations for double-replacement reactions that produce precipitates, gases, or molecular compounds, write net ionic equations for...
CK-12 Foundation
Ck 12: Chemical Equations
[Free Registration/Login may be required to access all resource tools.] Students explore mass relations between reactants and products for a given chemical process, and practice balancing chemical equations.
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.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Balancing Chemical Equations
How does one know if a chemical equation is balanced? What can be changed to balance an equation? Play a game to test ideas!
Georgia Department of Education
Ga Virtual Learning: Chemistry: Chemical Formulas and Equations
In this interactive module, students are introduced to the most fundamental part of chemistry: chemical reactions and the formulas that accompany them.
TeachEngineering
Teach Engineering: Hydrogen Oxygen Reaction Lab
This lab exercise exposes students to a potentially new alternative energy source-hydrogen gas. Student teams are given a hydrogen generator and an oxygen generator. They balance the chemical equation for the combustion of hydrogen gas...
Chem4kids
Chem4 Kids: Stoichiometry
This site provides a great overview of stoichiometry, the part of chemistry that studies amounts of substances that are involved in reactions. Content focuses on what you measure, and includes two examples.
American Chemical Society
Middle School Chemistry: Lesson Plans: Forming a Precipitate
Learners investigate the concept of a precipitate by combining two clear, colorless solutions that produce a solid.
American Chemical Society
Middle School Chemistry: Controlling Amount of Products in a Chemical Reaction
Students analyze the chemical equation for the reaction between vinegar and baking soda. They observe that the gas produced in the reaction is also part of the products of the written chemical equation.
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Chemical Calculations and Chemical Equations [Pdf]
This chapter on chemical calculations and equations focuses on equation stoichiometry. Learn how to convert masses, use limiting reactants, and calculate the molarity of a solution.