In this reactions worksheet, students use graphs showing reaction progress to determine if the reaction is exothermic or endothermic, the activation energy, and the enthalpy of change. This worksheet has 1 graph, 7 short answer, and 16...

An in-depth lesson, the fourth activity in a series of 36, begins with teaching how the periodic table's arrangement came to its current design. Using this knowledge, pupils then move on to analyze the arrangement of elements to their...

What has more energy than a room full of pupils after a fire drill? This lesson plan! Explore the changes in energy during different chemical reactions, discover why some reactions feel cold and others feel hot, and tackle the concept of...

In this kinetics activity, students use date from two experiments to determine the reaction order, calculate the rate constant and activation energy, and predict the mechanism for the reaction. This activity has 7 problems to solve.

This two-page assignment covers basic thermochemistry concepts. Chemistry learners identify exothermic and endothermic processes, explain a phase change graph, and draw an energy level diagram. There are no problems to solve, just...

In this chemical reaction learning exercise, students determine if given reactions are endothermic or exothermic reactions. Students determine the energy released or consumed when chemical reactions occur. This learning exercise has 5...

Young scholars investigate the concept of molecular structure. They describe the behavior of simulated molecules and identify any dislocations in crystalline structures. They also define various related vocabulary words and use them in...

Explanation of bond enthalpy that includes examples of calculating enthalpies of reaction using bond enthalpy.

With an overview of topics related to chemical energetics, this site provides a foundation to a study of thermodynamics and its relation to enthalpy. Topics covered include bond enthalpies and bond energies, energy content of fuels,...

Nice page includes a great deal of background on both bond length and bond dissociation energy. Includes a small table of bond energies as well as sample problems, graphics, and skill questions.

This site gives you the bond energy of a variety of bonds and has you figure out the reaction energy. Nice application of bond energy theory.

Provides a Java applet that shows the change in energy of a bonded and a non-bonded atom.

Determine the enthalpy of the ATP reaction.

Simple description and demonstration to illustrate the concept of Heat of solution!