Curated OER
Additional Stoichiometry Review Problems
In this stoichiometry worksheet, students interpret a chemical equation, determine number of moles produced or mass of product, and solve for the limiting reactant for reactions. This worksheet has 25 problems to solve.
Curated OER
Stoichiometry Lessons
Students are introduced to stoichiometric relationships in chemical equations with a Trail Mix activity before performing a lab to reinforce stoichiometry. Students complete the unit with a lab about limiting reactants in chemical...
Curated OER
Balancing Equations
In this chemical equations worksheet, students determine the products and reactants for given equations and then balance the equations. This worksheet has 4 problems to solve.
Chymist
Plop, Plop, Fizz, Fizz
One of the most recognizable commercial melodies was written in 1977, and led to gastronomical relief around the world. Scholars use Alka Seltzer tablets to measure reactants and calculate the chemical equation for the reaction of NaHCO3...
Cornell University
Predicting Chemical Reactions
Prove the Law of Conservation of Mass through a lab investigation. A well-designed lesson asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products allows individuals...
Beyond Benign
Green"er" Precipitation Reaction
All sodium carbonate may not have the same amount of carbonate, but it should have the same percent. Learners write and balance an equation to predict the chemical reaction between sodium carbonate and zinc acetate. Through the lab...
Curated OER
# 18 Determination of the Set Time for Epoxy Adhesive
Students recognize epoxy glue formation as two part polymerization (usually the curing agents act as co-monomers). They monitor the reaction by the changes in viscosity of the reacting mass, the temperature rise and fall, and the...
Curated OER
Net Ionic Equations
In this ionic equations worksheet, students write the balanced molecular equation, ionic equation, spectator ions, and net ionic equation for 4 chemical reactants. This worksheet has 4 problems to solve.
Curated OER
Physical vs. Chemical Changes
In this chemical reactions worksheet, high schoolers read about the differences between physical and chemical changes in substances. Then students identify situations as either an example of physical or chemical change. High schoolers...
Curated OER
Physical vs. Chemical Changes and "The Code"
For this chemical and physical change worksheet, students read about the differences between substances going through physical changes vs. chemical changes. They are given examples of each and evidence to look for in chemical changes....
Curated OER
Another Balancing Equations Sheet
In this reactions worksheet, students balance the reactants and products for the given chemical reactions. This worksheet has 15 problems to solve.
Curated OER
Writing the Complete Equation
In this writing equations worksheet, high schoolers are given 6 chemical reactions and they write equations for each one including the reactants, the products and the states of matter.
Curated OER
Balancing Chemical Equations
In this balancing chemical reactions worksheet, students fill in the proper coefficients in front of the reactants and products of 20 equations to balance each given chemical equation.
Curated OER
Stoichiometry Worksheet
On this stoichiometry worksheet learners will be balancing chemical equations. After the equations are balanced, students will be conducting calculations to solve for grams, moles, and limiting reactants.
Curated OER
2001 U.S. National Chemistry Olympiad - Local Section Exam
Sixty multiple-choice chemistry questions make up this comprehensive exam used for the 2001 US National Chemistry Olympiad. Every topic that you would expect to approach in a general chemistry class is queried on. You could easily use...
Curated OER
2000 U.S. National Chemistry Olympiad National Exam - Part I
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 general...
Curated OER
Module 7 Revision Guide - Chemistry
Two versions of this handout are provided, the second with more detailed information on the same topics. Chemistry aces survey chemical reactions, heat energy transferred, and the action of enzymes by reading this resource. You can...
Curated OER
Chemical Equations
Wow! This comprehensive collection of slides will walk your chemistry class through the foundation of chemical reactions, teach them to balance equations, differentiate types of reactions, and calculate stoichiometry problems. This will...
Curated OER
# 02 The Aspirin Shelf-Life Scenario
Students work for a company that produces acetylaslicylic acid, aspirin. They have been assigned the task of determining if different packaging materials and/or environmental storage procedures can increase the shelf-life of the product.
Curated OER
Organic Chemistry II Exam 3
In this chemistry worksheet, students determine which compound is the most acidic in each multiple choice question. Then they determine what the major product would be in each of the reactions stated on the sheet.
Curated OER
Organic Chemistry Problem Set Exam 1
Though there are technically only 13 questions on this exam, they take up six pages and make a thorough assessment of organic chemistry principles. There are plenty of diagrams to label or complete. Emission spectra are displayed for...
Curated OER
Chemistry 116 Exam 2 Summer 2009
Written for an introductory organic and biochemistry course, this exam will challenge your class. They label functional groups and stereocenters on drawings of molecules, draw structures given the name, complete drawings of chemical...
Chemistry Collective
Virtual Lab: Unknown Concentration of DNA Solution Problem
Highlight DNA solution with fluorescent dyes! Scholars use dye to determine the concentration of a DNA solution. As the dyes bind with the DNA solution, learners make conclusions about the limiting reactants.
Chemistry Collective
Virtual Lab: Camping Problem II
What happens to the enthalpy of a reaction as the concentration of reactants varies? Learners explore this question with a virtual lab activity. They consider five different solutions of the same reactants and monitor the temperature...
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