[Free Registration/Login may be required to access all resource tools.] How do trees help you breathe? This activity covers the connection between cellular respiration and photosynthesis and identifies the products and reactants of each.

In this limiting reagents problem, students are given specific concentrations of DNA solutions and are asked to predict what products and reactants will remain after a specific volumes are mixed and reaction has occurred.

[Free Registration/Login may be required to access all resource tools.] Defines reactant, product, and chemical equation.

In this limiting reagents problem, students are given specific concentrations of DNA solutions and are asked to predict what products and reactants will remain after a specific volumes are mixed and reaction has occurred.

Explore the analogy of sandwich making with several ingredients and see if anything is left over. Then do the same thing with reactants in a chemical reaction, to see how many different products can be made. Afterwards, play a game with...

[Free Registration/Login may be required to access all resource tools.] Reactants and products in chemical reactions and the relationship between reactants and products.

Watch this tutorial, and learn how to identify the limiting reactant in a chemical reaction. [7:04]

[Free Registration/Login Required] Using atoms from a reactants pool, construct products of an equation shown and place them in the product pool. Then answer a challenge question about the topic.

In this limiting reagents problem, students mix together solutions in different ratios in an attempt to produce a final solution that contains only 1 product.

Observe a visual representation of the equilibrium of products and reactants in chemical reactions. Record data while the reactions are taking place and print out a report afterwards.

This lesson will define a limiting reactant and its significance as well as the term "in excess". It is 2 of 2 in the series titled "Limiting Reactant Definition."

This lesson will define a limiting reactant and its significance as well as the term "in excess". It is 1 of 2 in the series titled "Limiting Reactant Definition."

A multiple-choice quiz on the processes of respiration and photosynthesis in plants.

[Free Registration/Login Required] Drag the atoms from the table to create chemical formulas. You will need a sign-in to access this media, but it will be well worth your time!

Interactive calculator that allows you to input reactants and products of a reaction and calculate the change in enthalpy and Gibbs Free Energy for the reaction.

Students use a Conductivity Probe to measure change in conductivity during a chemical reaction and determine the equivalence point of the reaction They determine the mass of the product and calculate the molar concentration of the...

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.

Here's a full and understandable discussion of Reaction Rates and Equilibrium.

Learn about the equilibrium pressures of chemical reactions. Follow the general steps used in calculating the pressures, and see some examples. Also find links to tutorials, presentation, and animations about other chemistry topics.

Students investigate the endothermic reaction involving citric acid, sodium bicarbonate and water to produce carbon dioxide, water and sodium citrate. In the presence of water [H2O]; citric acid [C6H8O7] and sodium bicarbonate [NaHCO3]...

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.

[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...

Students use the virtual lab to determine how four unknown substances react with each other including their stoichiometric coefficients. In this randomized activity, each student receives a different reaction and students can check their...

Through informational text, interactive practice problems, video clips, and real-world application, students are introduced to the science of Stoichiometry.