Curated OER
Chemical Equilibria
In this chemical reactions learning exercise, learners determine how mixtures shift toward reactants or products to reach equilibrium. For given reactions, learners determine how concentrations will change when adding or removing gases...
Curated OER
To Have Or Not To Have Oxygen (Part I - Fermentation)
Students explore the fermentation process. In this biology lesson plan, students describe the process of glycolysis and infer the reactants and products of fermentation.
Curated OER
Chemical Reactions Homework Problem Set
In this chemical reactions practice worksheet, students balance 6 equations and give the name of the reactants and the products. In addition, students balance 3 equations and determine the molecular formula and the molecular weight of...
Curated OER
Physical and Chemical Changes
Students examine the different changes in matter. In this chemical change instructional activity students determine the amount of reactant made in a reaction using the law of conservation.
Curated OER
Food or Fuel?
High schoolers describe the process of transesterification utilizing chemical formulas. They construct and compare models of chemical structure of the substances involved in biodiesel production such as: alcohols, alkenes, alkanes,...
Curated OER
Activity #13 Changing The Look of Sugar
Students observe what happens when sugar is dissolved in water and when it is heated. They weigh the products after each of the two experiments on a balance scale. Pupils distinguish between physical and chemical changes. Students are...
Curated OER
Enthalpy and Entropy
An entertaining presentation introduces both enthalpy and entropy. It explains equilibrium as the balance between these two measures and provides simple diagrams and graphics for additional clarity.
Beyond Benign
Exothermic and Endothermic Reactions
How can you tell the difference between endothermic and exothermic reactions? Chemistry scholars perform and observe two chemical reactions, measure the temperature throughout, then draw conclusions about changes in energy from their...
Curated OER
Chemical Equations
In this chemical equations worksheet, students are given the trends for the reactions between the alkaline earth metals with water, the solubility of the Group II hydroxides and the solubility of the Group II sulphates.
Curated OER
Reaction Types and Stoichiometry
In this chemical reactions worksheet, students balance chemical reactions and identify each type of reaction. Students write the net ionic equation for reactions. Students calculate moles and grams of reactants or products. This...
Curated OER
Chemistry 1A Review
For this Chemistry 1A worksheet, learners review, molecular weight, solubility, endothermic reactions, and number of protons, neutrons, and electrons for elements. Students review Lewis Structures and how to predict the amount of product...
Curated OER
Molarity, Excess and Percent Yield
In this molarity worksheet, students are given balanced equations and they are to calculate the mass or volume of reactants and products. Students calculate the theoretical, percentage, and actual yield for chemical equations. This...
Curated OER
Completing/Balancing Word/Symbol Equations
In this chemistry worksheet, learners predict the reactants and products of chemical reactions. They complete and balance 10 chemical equations.
Curated OER
Chemical Reactions
In this reactions worksheet, students write the formula for each reactant and product and then balance the equation. Students have 23 problems to solve.
Curated OER
Molar Ratio
Students conduct an experiment in which they react sodium bicarbonate with hydrochloric acid to determine the molar ration between the two reactants. Students must write correct formula and a balanced chemical equation and explain how...
Curated OER
Micro-Reaction Lab: Double Replacement
High schoolers demonstrate reactions that occur between two aqueous solutions. The driving force of the reaction is the formation of an insoluble product. They have to follow a series of directions and then record their observations and...
Curated OER
A Solution for Precipitation
Students predict the product of chemical reaction using the solubility rules. In this chemistry lesson, students balance ionic equation. They perform a lab to check if their predicted products are correct.
Curated OER
Mixtures, Percentage and Equation Stoichiometry
In this chemistry worksheet, learners answer 2 problems on solution stoichiometry. They calculate the mass of products formed given a certain amount of reactant.
Virginia Department of Education
The Rate of a Chemical Reaction
If your pupils think a catalyst is a list of their cats, then this might be the lesson for you! Young chemists study the effect of temperature, catalysts, concentration, and particle size on reaction rates during four different...
Curated OER
Chemical Stoichiometry Problems
In this stoichiometry worksheet, learners calculate theoretical yield and percent yield. This worksheet has 2 problems to solve.
Santa Monica College
Chemical Equilibrium and Le Chatelier’s Principle
Henri-Louis Le Chatelier wrote many papers throughout his 85-year life, but he is remembered for one of his earliest discoveries, now known as Le Chatelier's Principle. The final lesson plan in an 11-part series encourages young chemists...
Science Geek
Equilibrium and Le Chatelier's Principle
Time to shake up the status quo with a presentation that describes Le Chatlier's Principle and has pupils examine situations in which equilibrium is upset. Four examples show different stresses to the reaction and the resulting shift.
LABScI
Freezing Point Depression: Why Don’t Oceans Freeze?
Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions...
Curated OER
Organic Chemistry Review
For this organic chemistry review worksheet, students answer 10 questions about different organic molecules. They draw structures, they name structures, they draw polymers, they identify the type of isomer given molecules are and they...