# Classroom Resources: Reactions & Stoichiometry

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1 – 25 of 30 Classroom Resources

• Conservation of Matter, Stoichiometry, Limiting Reactant | High School

### Lesson Plan: Limiting Reactant and Mole of Reaction

In this lesson, students will identify limiting reagents (and the amounts of product produced) using the mole of reaction concept. This approach is designed to focus on calculations related to limiting reactant after a conceptual understanding of what a limiting reactant is has already been established.

• Percent Composition, Stoichiometry, Limiting Reactant, Percent Composition, Lewis Structures | High School

### Lab: Untouchable Key Escape Room

In this lab, students are presented with a key wrapped in aluminum foil a quantity of solid copper (II) chloride, a balance, distilled water and a selection of standard laboratory glassware and equipment. Without using their hands to touch the key, students must react the key with a copper (II) chloride solution in order to free the key and use it to escape from the chemistry classroom!

• Balancing Equations, Percent Yield, Stoichiometry, Limiting Reactant | High School

### Lesson Plan: A Scaffold Approach to Teaching Stoichiometry

In this lesson, students will learn the basics of stoichiometry including determining the amount of reactant needed or product produced, determining the limiting reactant and finally determining percent yield. Additionally they will design their own stoichiometry lab and interpret their collected results.

• Balancing Equations, Stoichiometry, Limiting Reactant | High School

### Activity: Farfalle Stoichiometry

In this activity, students will use a hands-on manipulative (pasta) to represent the stoichiometric relationships in a compound and in a balanced equation. They will determine the limiting reactant for a given amount of two reactants and they will identify the excess reactant. In the extension exercise, students will balance the equations that are used in the production of ammonia, a common chemical fertilizer.

• Balancing Equations, Percent Yield, Stoichiometry, Conservation of Mass, Classification of Reactions, Limiting Reactant, Dimensional Analysis | High School

### Lesson Plan: Stoichiometry Unit Plan

The AACT high school classroom resource library has everything you need to put together a unit plan for your classroom: lessons, activities, labs, projects, videos, simulations, and animations. We constructed a unit plan using AACT resources that is designed to teach the concepts of stoichiometry and limiting reactants to your students.

• Naming Compounds, Molecular Formula, Covalent Bonding, Ionic Bonding, Stoichiometry, Classification of Reactions, Limiting Reactant | High School

### Activity: Isn't it Ionic

In this activity students will form ionic compounds and covalent compounds using clues and questions. Students are going to then develop their own stoichiometric problems and have other groups attempt to solve it.

• Acid Base Reactions, Stoichiometry, Limiting Reactant | High School

### Lab: Fizzy Drink

In this lab, students will learn the properties of acid and bases while applying the principles of stoichiometry to calculate the amount of base needed to neutralize an acid completely and produce a bubbly drink.

• Observations, Chemical Change, Conservation of Mass, Stoichiometry, Conservation of Mass, Limiting Reactant, Chemical Change | High School

### Demonstration: Understanding Limiting Reactants

In this demonstration, the teacher will perform a series of reactions between acetic acid (vinegar) and varying amounts of sodium bicarbonate (baking soda) in order to inflate several balloons. Students will observe the reactions and analyze the quantities of reactants used as well as the results in order to understand the concept of limiting reactants.

• Stoichiometry, Limiting Reactant, Dimensional Analysis | High School

### Lesson Plan: Map to Solving Limiting Reactant Problems

In this lesson, students will learn how to follow a step-by-step problem solving method for limiting reactant stoichiometry problems. This method can be particularly beneficial for students who struggle with completing these calculations.

• 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**

• Observations, Chemical Change, Chemical Change, Reaction Rate, Acid Base Reactions, Limiting Reactant, Chemical Change, Indicators, Le Châtelier's Principle | High School

### Demonstration: Milk of Magnesia Magic

In this demonstration, students will observe a color change in a milk of magnesia solution as vinegar is added.

• Chemical Change, Chemical Change, Concentration, Acid Base Reactions, Molarity, Balancing Equations, Stoichiometry, Limiting Reactant, Chemical Change, Measurements, Titrations, Indicators, Graphing, Equivalence Point, Error Analysis, Error Analysis | High School

### Lab: Acid-Base Mole Ratio

In this lab, students study several concepts, including acid-base reactions, limiting reactants, and stoichiometry, by observing the contained reaction of acetic acid (diluted vinegar) with sodium hydrogen carbonate (baking soda) in an unconventional, cost effective titration.

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

• Concentration, Molarity, Percent Yield, Stoichiometry, Classification of Reactions, Limiting Reactant, Mole Concept, Chemical Change, Dimensional Analysis | High School

### Demonstration: First Day Review

In this demonstration, students see evidence of a chemical reaction.

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

### Lab: Mole Relationships in a Single Displacement Reaction

In this lab, students will carry out a reaction between metallic copper and an aqueous solution of silver nitrate to determine the mole ratio between the reactants and the products and write a balanced equation based on the data.

• 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.

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

### Lesson Plan: Limiting Reactant

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

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

• Observations, Chemical Change, Inferences, Stoichiometry, Conservation of Mass, Limiting Reactant, Chemical Change, Exothermic & Endothermic | High School

### Demonstration: Introducing Limiting Reactants

In this demonstration, the teacher will perform a series of reactions between acetic acid--vinegar-- and varying amounts of sodium bicarbonate --baking soda--in order to inflate several Ziploc bags. Students will observe the reactions and analyze the quantities of reactants used as well as the results in order to understand the concept of limiting reactants. Students will also determine if the reaction is an endothermic or exothermic process based on their observations.

• 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.