# Classroom Resources: Reactions & Stoichiometry

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101 – 125 of 197 Classroom Resources

• Stoichiometry, Balancing Equations, Dimensional Analysis | High School

### Access is an AACT member benefit. 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.

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

### Access is an AACT member benefit. 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.

• Balancing Equations, Precipitate, Solubility Rules | High School

### Access is an AACT member benefit. Animation: Net Ionic Equations Animation

This animation explores what happens in a precipitate reaction on the particulate level. Students will see why writing a net ionic equation accurately represents what happens in these scenarios. 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**

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

### Access is an AACT member benefit. Animation: Limiting Reactant Animation

This animation explores what happens in a limiting reactant problem on the particulate level. Assembling a bike is used as an analogy to introduce the concept of limiting reactant, and then the balanced equation of the combustion of methane is used in four quantitative examples to show what it means for a chemical to be a limiting reactant. The concept of the conservation of mass is also demonstrated by calculating masses from the mole quantities of the reactants and products. **This video has no audio**

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

### Access is an AACT member benefit. 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.

• Combustion, Chemical Change, Chemical Change, Density, Kinetic Molecular Theory, Density | High School

### Access is an AACT member benefit. 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, Stoichiometry, Dimensional Analysis, Mole Concept, Scientific Method | High School

### Access is an AACT member benefit. Lab: Limiting Reactants in Brownies

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

• Limiting Reactant, Percent Yield, Stoichiometry, Balancing Equations, Measurements, Observations, Error Analysis, Separating Mixtures, Error Analysis, Dimensional Analysis, Mole Concept | High School

### Access is an AACT member benefit. 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, Percent Yield, Stoichiometry, Balancing Equations, Chemical Change, Error Analysis, Dimensional Analysis, Acid Base Reactions, pH | High School

### Access is an AACT member benefit. 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.

• Limiting Reactant | High School

### Access is an AACT member benefit. 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.

• Limiting Reactant, Balancing Equations, Stoichiometry, Observations, Chemical Change | High School

### Access is an AACT member benefit. Lesson Plan: Observing the Limiting Reactant

In this lesson, students will be introduced to the concept of limiting reactants by applying various literacy strategies to a one-page informational text and through a short demonstration (or lab). The reading and demo will help students create connections between the macroscopic, particulate, and symbolic representations of chemical reactions and limiting reactants.

• Limiting Reactant, Percent Yield, Stoichiometry, Balancing Equations, Net Ionic Equation, Concentration, Molarity, Precipitate, Solubility, Dimensional Analysis, Mole Concept, Observations, Graphing, Separating Mixtures, Identifying an Unknown | High School

### Access is an AACT member benefit. 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.

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

### Access is an AACT member benefit. Activity: Limiting Reactants Using Particulate Diagrams

In this activity, students will practice drawing particulate diagrams to help them determine the limiting reactant given a certain number of reactant molecules. Students’ practice with particulate diagrams will help them better visualize and understand limiting reactant calculations. The visualizations provided in this activity are helpful at all levels, from beginning chemistry students up through AP chemistry students, who will need to be comfortable with particulate diagrams for the AP exam.

• Calorimetry, Exothermic & Endothermic, Temperature, Stoichiometry, Limiting Reactant, Chemical Change, Molarity, Enthalpy, Heat, Concentration, Experimental Design, Scientific Method | 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.

• Combustion, Limiting Reactant, Catalysts, Gas Laws, Stoichiometry, Activation Energy, Enthalpy, Energy Diagrams, Experimental Design | High School

### Access is an AACT member benefit. Lab: Launching Rockets

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

• Molarity, Concentration, Saturated/Unsaturated/Supersaturated, Mole Concept, Dimensional Analysis, Stoichiometry, Balancing Equations | High School

### Access is an AACT member benefit. Lab: Kool-Aid

In this lab, students calculate grams of Kool-Aid powder required to make 3 different solutions of Kool-Aid (using the molar mass of sugar) with the following concentrations: 0.2 M, 0.5 M, and 1.0 M. Determine the concentration of properly prepared Kool-Aid through a taste test.

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

### Access is an AACT member benefit. 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, Chemical Change, Heat, Temperature, Observations, Chemical Change | High School, Middle School

### Access is an AACT member benefit. 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.

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

### Access is an AACT member benefit. 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.

• Titrations, Acid Base Reactions, Indicators, Chemical Change, Stoichiometry, Balancing Equations, Concentration, Molarity, Error Analysis, Dimensional Analysis, Measurements | High School

### Access is an AACT member benefit. Lab: Vinegar Quality Control

In this lab, students will perform a titration of a vinegar sample to determine if it is it close to the concentration claimed on the bottle.

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

### Access is an AACT member benefit. 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 | Middle School, High School

### Access is an AACT member benefit. 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.

• Pros Cons of Nuclear Power, Combustion, Acid Rain, Radiation, Renewable Energy, Radiation | High School

### Access is an AACT member benefit. Activity: Town Meeting

In this activity, students will learn about acid rain, gas scrubbers, half-life, chain reactions, and other topics around electricity production through a debate on nuclear power.

• Net Ionic Equation, Chemical Change, Solubility Rules, Solubility, Precipitate, Balancing Equations, Chemical Change | High School

### Access is an AACT member benefit. Lab: Ions in Aqueous Solution Presentation

In this lab, students will mix ionic solutions to determine what combinations form precipitates.

• Titrations, Strong vs Weak, Indicators, pH, Equivalence Point, Acid Base Reactions, Balancing Equations, Graphing | High School

### Access is an AACT member benefit. Lab: Titration Curves

In this lab, students graphically observe a plot of micro acid/base titrations and determine the equivalence point of each plotted curve.

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Grade Level: High School