Curated OER
Balancing Symbolic Equations
For this chemistry worksheet, students balance the listed equations by changing the coefficients. They identify and explain why iron bromide can react with water to produce iron oxide and hydrogen bromide.
Concord Consortium
Concord Consortium: Stem Resources: Making and Breaking Bonds
A look at the processes of association and dissociation in chemical bonding. Observe simulations that show the influence of temperature on making and breaking of bonds, how diatomic molecules form, and what determines the speed of...
Sophia Learning
Sophia: Diatomic Molecules
Use a mnemonic device and one other study method to remember the seven diatomic molecules. [2:33]
Other
Science geek.net: Ions and Compound Formulas
A twenty-question multiple-choice exercise about chemical formulas. Quiz gives immediate feedback with the correct answer.