Learn the facts about types of wax! Partnered pupils determine the enthalpy of combustion for traditional paraffin candles, as well as soy-based candles. The activity focuses on calculations and compares the environmental impact of both...

Accomplished chemistry learners set up a calorimeter and measured the energy released by various alcohols: methanol, ethanol, and either propanol or butanol. Lab masters will first need to design their tables for recording data. Consider...

In this enthalpy worksheet, students calculate the combustion for propane and find the enthalpy of the reaction. They discuss entropy and free energy.

In this energy changes, rates of reactions and nuclear chemistry worksheet, students solve 14 problems to review concepts about endothermic and exothermic reactions, heat of combustion, heat of reactions, enthalpy, kinetic and potential...

All chemical reactions require energy. To explore thermodynamics, classes read and discuss its laws, exothermic and endothermic reactions, enthalpy in many forms, calculate enthalpy problems, and use Hess' Law to calculate enthalpy of a...

The National Chemistry Olympiad exams are comprehensive tests covering an entire  year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your...

As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...

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...

A valuable resource provides a list of concepts that young chemists should grasp. The topics include energetics, kinetics, equilibria, redox reactions, and the halogen group. Employ this as a guide for your own curriculum planning, or a...

National Chemistry Olympiad tests are released after their use each year, since they cannot use them again for this event. The result: outstanding comprehensive assessment resources for general chemistry classes! This 2005 version covers...

In this reactions worksheet, students define enthalpy, heat of formation, and Hess's Law. Students determine how many kilojoules are released during specific reactions. This worksheet has 6 short answer questions and 11 problems to solve.

In this thermochemistry worksheet, students calculate the enthalpy of vaporization as well as the write the thermochemical expression for the production of the chemical reaction.

Only 10 percent of an incandescent bulb's energy is used to create light; the remaining 90 percent is heat. In the unit of activities, young chemists examine energy through hands-on activities, videos, discussions, and...

In this thermodynamics activity, students calculate the enthalpy change and free energy change for given reactions. students describe what happens to the entropy of a system and describe how its enthalpy changes. This activity has 20...

In this energy worksheet, students calculate the specific heat and the melting point of titanium. Students calculate the energy released and compare the energetics for given reactions. This worksheet has 4 word problems.

In this chemistry practice activity, students select the correct response to the given questions. Students apply knowledge about the states of matter, finding vapor pressure and atmospheric pressure.

In this energy worksheet, students calculate how much energy is required to heat solutions. This worksheet has 4 problems to solve.

In this bonding worksheet, students take an interactive quiz with 15 multiple choice questions about the VSEPR Theory, bonding, the geometry of molecules, Lewis structures, resonance structures and enthalpy changes.

In this thermodynamics worksheet, students review kinetic and potential energy, enthalpy, entropy, and standard hear of formation. This worksheet has 1 short answer and 5 problem solving questions.

With an overview of topics related to chemical energetics, this site provides a foundation to a study of thermodynamics and its relation Hess's law and enthalpies of combustion.