# Classroom Resources: Reactions & Stoichiometry

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126 – 150 of 205 Classroom Resources

• Concentration, Precipitate, Net Ionic Equation, Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis | High School

### Lab: Finding CO<sub>2</sub> Mass in your Breath

In this lab, students will measure how much carbon dioxide they exhale by reacting their exhaled breath with lime water (calcium hydroxide).

• Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis | High School

### Activity: Sweet Stoichiometry Reactions

In this activity, students will use candy to investigate stoichiometry and mole-gram relationships in chemical equations, but could also be used to introduce the concept of limiting reactants.

• Concentration, Acid Base Reactions, Molarity, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Measurements, Indicators, pH | High School

### Lab: Acid/Base Stoichiometry

In this lab, students experience a limiting reactant and can physically see the difference in amounts of product generated. They also see which reactant is in excess.

• Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Scientific Method | High School

### Lab: Limiting Reactants in Brownies

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

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

### Activity: Limiting Reactants using Particulate Diagrams

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

• Acid Base Reactions, Balancing Equations, Percent Yield, Stoichiometry, Limiting Reactant, Chemical Change, Dimensional Analysis, pH, Error Analysis | 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.

• Observations, Chemical Change, Physical Change, Reversible Reactions | High School

### Lab: Breath Test

In this lab, students investigate whether chemical reactions can happen only in one direction, or whether they can be "undone."

• Precipitate, Conductivity, Classification of Reactions, Chemical Change | High School

### Demonstration: Sterno

In this demonstration, students will observe a decomposition reaction that triggers a precipitate reaction that prevents a solution from conducting electricity.

• Combustion, Classification of Reactions | High School

### Lab: Exploding Pumpkin

In this lab, students use a chemical reaction to create an explosion inside of a pumpkin.

• Interdisciplinary, Review, Culminating Project, Classification of Reactions | High School

### Project: Classifying Reaction Types Mini Poster

In this activity, students display their knowledge of the five main types of chemical reactions on a miniature sized poster.

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

### Lab: Classifying Reaction Types

In this lesson, students will carry out various reactions and classify the reaction types.

• Balancing Equations, Classification of Reactions | High School

### Lesson Plan: Geometric Equations Challenge

In this lesson plan, students find patterns in the reactions between several geometric shapes and then learn about the five main types of reactions.

• Reduction, Percent Yield, Activity Series, Stoichiometry, Redox Reaction, Classification of Reactions, Mole Concept, Chemical Change, Dimensional Analysis, Measurements, Oxidation, Error Analysis | High School

### Lab: Extracting Copper From Ore

In this lab, students extract copper from copper carbonate using two different methods, and then determine which industrial method is most effective.

• Observations, Chemical Change, Conservation of Mass, Conservation of Matter, Balancing Equations, Conservation of Mass, Chemical Change, Matter, Conservation of Matter, Predicting Products, Experimental Design | High School

### Lab: Matter Matters

In this lesson, students will investigate the Law of Conservation of Mass.

• Renewable Energy, Balancing Equations, Conservation of Mass, Chemical Change, Molecular Structure , Functional Groups | High School

### Lab: Soap or Fuel?

In this lab, students will transform vegetable oil into a soft soap and into biodiesel fuel. The two reactions emphasize that the products of a chemical reaction are under the control of the chemist. By noting the relationship of the reaction product to the reactants, students will gain a deeper understanding of the law of conservation of matter.

• Observations, Separating Mixtures, Chemical Change, Conservation of Mass, Lab Safety, Conservation of Matter, Balancing Equations, Percent Yield, Conservation of Mass, Classification of Reactions, Accuracy, Chemical Change, Chemical Properties, Conservation of Matter, Error Analysis | High School

### Lab: Reactions of Copper

In this lab, students will convert copper metal into different copper compounds and then back to copper to illustrate conservation of matter.

• Observations, Chemical Change, Conservation of Mass, Chemical Change, Heat, Temperature, 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.

• Gas Laws, Concentration, Molarity, Electrolysis, Stoichiometry, Mole Concept, Dimensional Analysis, Ideal Gas, Electrons | High School

### Lesson Plan: Stoichiometry Set-up Method

In this lesson, students will learn how to follow a process of visual cues in combination with a step-by-step problem solving method for different types of stoichiometric problems. This method can be particularly beneficial for students who struggle with completing multi-step calculations.

• Temperature, Gas Laws, Pressure, Interdisciplinary, Stoichiometry, Ideal Gas, Volume | High School

### Lesson Plan: Mechanisms and Properties of Airbags

In this lesson students will learn about the mechanisms and properties of airbags, and examine the choice of airbag inflator from several points of view.

• Balancing Equations, Stoichiometry, Dimensional Analysis | 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.

• Balancing Equations, Percent Yield, Stoichiometry, Classification of Reactions, Accuracy, Chemical Change, Dimensional Analysis, Measurements, Error Analysis | High School

### Lab: Baking Soda Stoichiometry

In this lab, students will decompose baking soda and use stoichiometry to determine the proper balanced chemical equation of its decomposition.

• Stoichiometry, Mole Concept, Dimensional Analysis | High School

### Lesson Plan: How to do Stoichiometry Problems

In this lesson, students learn templates for performing stoichiometry problems. They then put the methods to the test with a practice worksheet.

• Balancing Equations, Reduction, Percent Yield, Redox Reaction | High School

### Lab: Reduction of Metal Oxides Using Carbon

In this lab, students reduce metal ores using an alternative apparatus to a traditional crucible.

• Percent Yield, Stoichiometry, Limiting Reactant, Dimensional Analysis | High School