Net Texts
Hess's Law Worksheet
Challenge young scholars' understanding of thermochemistry with this skills-practice worksheet on Hess's Law. Given a series of five multi-step chemical reactions, students must determine the overall change in entropy for each.
Curated OER
Alkanes: Thermal Cracking
In this alkanes worksheet, students compare the average standard bond enthalpy for common bonds. Then students complete 3 short answer questions.
Teach Engineering
Bridging to Polymers: Thermoset Lab
Investigate thermoset polymers through experimentation. In an effort to determine the strongest, most flexible mixture, groups conduct an experiment on different-ratio epoxy-amine polymers to finish the set of two lessons.
Curated OER
Thermochemistry
In this thermochemistry instructional activity, students calculate the enthalpy of vaporization as well as the write the thermochemical expression for the production of the chemical reaction.
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Chemical Solutions
In this chemical solutions worksheet, Students determine the significance of the critical point in a phase diagram and rank solutions from weakest to strongest solute-solvent interaction. This worksheet has 4 problems to solve.
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Chemistry Worksheet-Phase Changes
In this phase change instructional activity, students answer twenty questions about changes in energy to a system. They analyze phase diagrams, the determine the effects of changes in temperature on a system, they answer questions about...
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Enthalpy and Thermochemistry Problem Set
In this thermochemistry worksheet, students answer questions based on the reaction of charcoal and liquid oxygen. Students write a balanced chemical equation, determine the limiting reagent, calculate the mass of each product, and amount...
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AP Chemistry Thermochemistry 2
In this thermochemistry worksheet, students solve a variety of problems including finding heats or reactions, determining specific heats of substances, finding the amount of energy released in a calorimeter determining the final...
Curated OER
Exothermic and Endothermic Changes
Young scholars define and identify endothermic/exothermic reactions. Using a series of experiments, they construct and interpret potential energy diagrams for their reactions.
American Chemical Society
Energy Foundations
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 readings. Scholars...
Curated OER
More Thermochemistry Problems
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...
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Version 001 – Exam 1 – David Laude (53015) 1
A 30-question multiple choice chemistry test challenges takers. Topics touched upon include thermochemistry, equilibrium, behavior of gases, and pH. Problem solving is required in order to answer most of the questions. Other questions...
Curated OER
Reaction Mechanisms
In this reactions worksheet, students give the equation for the overall reaction, identifying the catalyst in the equation. Students create graphs and write out the rate determining step. This worksheet has 4 graphs, 2 short answers, and...
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Free Energy Formula
In this chemical reaction worksheet, learners use the free energy formula to determine if reactions are spontaneous or not. This worksheet has 5 problems to solve.
Curated OER
Energy and Enthalpy
In this energy worksheet, students calculate how much energy is required to heat solutions. This worksheet has 4 problems to solve.
Curated OER
Energy and Enthalpy
For 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.
National Institute of Open Schooling
Periodic Table and Atomic Properties
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...
Curated OER
Chemical Reactions
In this chemical reactions activity, students determine the half-life of a chemical compound for a decomposition reaction. Students determine the activation energy for the reverse of a reaction. This activity has 2 problems to solve.
Royal Society of Chemistry
A Reversible Reaction of Hydrated Copper (II) Sulfate
How can removing water change the color of a substance? Lab partners remove the water of crystallization from hydrated copper (II) sulfate, record their observations, then rehydrate the solid. The resource is printable and contains ideas...
Curated OER
Hess's Law Cycle
In this chemistry activity, students write the balanced equation for the formation of one mole of fat from its elements under standard conditions. Then they write the balanced equation of the combustion of this fat. Students use Hess's...
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Studying the Equilibrium of a Water System
In this equilibrium instructional activity, students perform a computer simulation on vapor pressure of water at different temperatures to answer 11 problem solving and short answer questions about the topic.
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Practice Test Chapter 12: Energy Changes in Chemical Reactions
In this chemistry practice test worksheet, students review their knowledge of energy changes in chemical reactions as they answer 17 multiple choice and short answer questions.
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Le Chatelier's Principle
In this chemical equilibrium worksheet, students review Le Chatelier's Principle and predict the direction of equilibrium shift for different changes to a chemical reactions. Students also review enthalpy and entropy. This worksheet has...
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Units in Thermochemical Calculations
High schoolers study how to complete thermochemical equations. In this equation lesson students learn how to manipulate equations to calculate energy changes and reactions.