Classroom Resources: Reactions & Stoichiometry

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76 – 100 of 179 Classroom Resources

  • Classification of Reactions, Exothermic & Endothermic | High School, Middle School

    Simulation: Energy Changes in Chemical Reactions

    In this simulation, students will evaluate the energy changes in an endothermic and an exothermic chemical reaction. Through the use of this simulation students will have the opportunity to compare how energy is absorbed and released in each reaction. Additionally, students will make a connection between the standard energy diagrams associated with each reaction type.

  • Phase Changes, Conservation of Matter, Polymers, Chemical Change | Elementary School

    Lesson Plan: Making Slime

    In this lesson, students explore the science behind chemical reactions as well as the processes used by chemical engineering principles to develop new materials. The idea that mixing two substances can result in an explosion, the release of gas, and the formation of an entirely new substance is both fascinating and mysterious to most young students.

  • Physical Properties, Physical Change, Chemical Change | Elementary School

    Lab: What's the Fizz?

    In this lab, students will make a lemon fizzy drink. Students will discuss what happens when things are mixed together.

  • Balancing Equations, Stoichiometry | High School

    Lesson Plan: Stoichiometry of Air Bags

    In this lesson, students will be introduced to the concept of gram to gram stoichiometry calculations. Students will be guided through a scenario regarding air bags and will be tasked with calculating the amount of gas (NaN3) that must be used to inflate a vehicle air bag to the correct size. Follow-up practice problems are also provided.

  • Solubility, Reaction Rate, Solute & Solvent, Physical Change | Elementary School

    Lab: M&M's Solution

    In this lab, students will investigate dissolving using M&M’s and will determine whether dissolving happens faster without assistance, or with the assistance of the tongue and teeth.

  • Combustion, Heat, Exothermic & Endothermic, Heat of Combustion | High School, Middle School, Elementary School

    Video: The Internal Combustion Engine Video

    This video investigates both the mechanical and the chemical processes used in the internal combustion engine, as well as the history and evolution of the combustion engine.

  • Precipitate, Balancing Equations, Solubility Rules | High School

    Animation: Net Ionic Equations Animation

    In this animation, students will witness a precipitate reaction on the particulate level to understand why a net ionic equation represents what happens in these reaction types. An example of diluting a soluble solid, mixing two aqueous reactants that yield aqueous products, and mixing two aqueous reactants that yield a precipitate are part of this animation. **This video has no audio**

  • Stoichiometry, Conservation of Mass, Limiting Reactant, Mole Concept | High School

    Animation: Limiting Reactant Animation

    In this animation, students will visualize on the particulate level what happens in a limiting reactant problem. A number of limiting reactant scenarios are animated, including a simple example of how to build a bike to introduce the concept of limiting reactant. Conservation of mass is also demonstrated by calculating masses from the mole quantities of the reactants and products. **This video has no audio**

  • Catalysts, Reduction, Combustion, Redox Reaction, Activation Energy, Oxidation | High School, Middle School, Elementary School

    Video: Catalytic Converters Video

    This video investigates the role of a catalytic converter and its corresponding chemical reactions within a vehicle. Students will learn about both oxidation and reduction reactions and how they, in combination with a catalyst, can impact the molecules released in a car’s exhaust.

  • Chemical Change, Combustion | High School

    Demonstration: Liquid and Gas Burning Comparison

    In this demo, students will witness the burning of a substance in its gas and in its liquid states. They will carry out the demonstrations themselves, and compare the results of the two reactions.

  • Limiting Reactant | High School

    Lab: Limiting Reactants in Brownies

    In this lesson, students will investigate the idea of limiting reactant using a brownie recipe.

  • Percent Yield, Limiting Reactant | High School

    Lab: Limiting Reactant Lab

    In this lab, students react copper(II) chloride with aluminum to determine the limiting reactant. They then isolate one product to determine their percent yield.

  • Limiting Reactant | High School

    Lab: Limiting Reactant in a Balloon

    In this lab, students perform a reaction between acetic acid and sodium bicarbonate and determine the amount of product formed and the limiting reactant.

  • Combustion | High School

    Lab: Will O' The Wisp

    In this lesson, students witness a chemical reaction that involves various states of matter and can include a stoichiometric problem.

  • Limiting Reactant | High School

    Lab: Limiting Reactant Candy

    In this lab, students will understand what is meant by the term, "limiting reactant" and be able to identify the limiting reactant in a non-chemistry situation.

  • Percent Yield, Limiting Reactant | High School

    Lab: White Lab

    In this lab, students use molarity concepts to review limiting reactant concepts mathematically, conceptually, and graphically. They can then carry out a follow up investigation to identify an unknown using concepts learned in the first investigation.

  • Balancing Equations, Stoichiometry, Conservation of Mass, Limiting Reactant | High School

    Lesson Plan: Limiting Reactant

    This lesson is intended to be used as an introduction to the concept of limiting reactants.

  • Balancing Equations, Stoichiometry, Conservation of Mass, Limiting Reactant | High School

    Activity: Limiting Reactant Activity

    In this activity, students will gain practice drawing particulate diagrams to demonstrate stoichiometry and limiting reactants.

  • Molarity, Stoichiometry, Limiting Reactant, Chemical Change, Calorimetry, Temperature, Exothermic & Endothermic | High School

    Lab: Less Than Zero

    In this lab, students will investigate the endothermic reaction between baking soda and HCl. Students will consider stoichiometric ratios, molar concentrations, reaction scale, and calorimetry. The lab starts with a scripted reaction that uses given molar ratios, a glass beaker, and 2-M HCl. They will witness a temperature drop of about 5 to 8 C. Students then adjust the experiment so they can achieve a temperature drop of more than 20 C.

  • Gas Laws, Catalysts, Combustion, Stoichiometry, Limiting Reactant, Activation Energy | High School

    Lab: Launching Rockets

    In this lab, students create a stoichiometric mixture of hydrogen and oxygen gases to launch a soda bottle rocket.

  • Reaction Rate, Redox Reaction, Chemical Change, Exothermic & Endothermic | High School

    Demonstration: Potassium Permanganate Demo

    In this demo, students witness two chemicals that take some time to react. The KMnO4 and glycerin come into contact and appear not to react, but then a flame results. This is an example of an exothermic redox reaction.

  • Conservation of Mass, Exothermic & Endothermic | Middle School, High School

    Lab: Kitchen Reaction

    In this lab students will observe an endothermic chemical reaction involving baking soda (sodium bicarbonate) and vinegar (acetic acid). Students will investigate the signs a chemical reaction has occurred (gas production, change in temperature). Students will perform the lab in an open system so they can see the change of mass due to gas production. This lab is a lead into the topic of conservation of mass. After the lab is completed, the teacher should do a demonstration of the exothermic reaction Hydrogen peroxide and potassium iodide.

  • Introduction, Conservation of Mass, Balancing Equations, Conservation of Mass, Limiting Reactant | High School, Middle School

    Activity: Kinesthetic Reactions

    In this lesson students, through their physical movement, will model the law of conservation of mass during a chemical reaction. Students will also explore the concepts of limiting and excess reactants as well as balancing a chemical equation. Through this activity they also develop a means of representing particles at the molecular level.

  • Balancing Equations, Classification of Reactions, Chemical Change | High School

    Lab: It's Time to React

    In this lab, students will conduct four chemical reactions and analyze each for indicators of a chemical reaction. Based on their observations students will write a balanced chemical equation for each reaction as well as identify the reaction type for each reaction.

  • Polymers, Polymers, Chemical Change, Chemical Bond | High School, Middle School

    Demonstration: Turn Milk into Plastic

    In this demonstration, students will observe the process of making a polymer, casein plastic, from the casein protein found in milk.

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