Classroom Resources: Solutions
1 – 18 of 18 Classroom Resources
Solubility, Net Ionic Equation, Precipitate | High School
In this activity, students will investigate concepts of corrosion and redox as they consider the Flint, Michigan Water Crisis and the question, “How did the lead get into Flint’s drinking water?” As they explore these topics while also considering solubility, students will begin to understand how corrosion control is used to prevent lead from contaminating a drinking water supply.
Concentration, Precipitate, Molarity, Molality, Conductivity, Colligative Properties, Boiling Point Elevation, Freezing Point Depression, Distillation, Culminating Project, Graphing, Accuracy, Error Analysis, Interdisciplinary, Mixtures, pH, Buffers, Boiling Point, Freezing Point, Phase Changes | High School
In this lesson, students will consider their water footprint and means to obtain fresh water from seawater using a solar still. To understand the differences between fresh water and seawater, students will determine the composition of artificial seawater by using qualitative analysis to test for different ions in solution and calculate the molarity of different salts used in the recipe. Students will observe the effects of solutes in aqueous solutions by measuring conductivity and the freezing and boiling points of seawater and deionized water and determine total dissolved solids. In addition, students explore the buffering ability of seawater and the effect of carbon dioxide on its pH.
Net Ionic Equation, Precipitate, Solubility, Solubility Rules, Balancing Equations | High School
In this activity, students will us an animation to visualize what happens in a precipitate reaction on the particulate level, and they 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.
Precipitate, Solubility, Solubility Rules, Predicting Products | High School
In this lesson, students will learn about lead and the contamination of drinking water. Through collaboration, students will then consider strategies for decontaminating water, and have the opportunity to perform small-scale precipitation reactions as a method of extracting metal ions from a water sample. Finally, students can conduct research and reflect on their experience to propose a possible solution for decontaminating drinking water.
Identifying an Unknown, Observations, Physical Change, Physical Properties, Chemical Change, Chemical Properties, Solubility, Precipitate, Indicators | High School
In this lab, students will be introduced to common laboratory techniques, safety procedures, lab reagents, and terminology, all while identifying unknown household substances. Students will learn how to use qualitative analysis techniques as a systematic way to identify unknown materials. As part of this process, they will practice careful observation and documentation, as well as identifying relevant physical and chemical properties and changes, including solubility, color change, gas formation, and precipitation of solids.
Identifying an Unknown, Experimental Design, Scientific Method, Chemical Change, Net Ionic Equation, Precipitate, Solubility, Solubility Rules, Balancing Equations, Predicting Products, Chemical Change | High School
In this lab, students will identify 3 unknown acids by using the solubility rules. They will be given a list of materials and will design their own procedures for identifying the unknowns. For each combination of reactants, they will predict whether a product forms and, if it does, write complete and net ionic equations for those reactions.
Solubility, Solute & Solvent, Precipitate, Mixtures, Error Analysis, Chemical Change, Physical Change, Observations, Identifying an Unknown, Graphing | Middle School, High School
In this lab, students will test “evidence” that has been collected from a crime scene. In order to determine if the victim was poisoned, students will perform a solubility and crystallization test on an unknown powder. Then, students will attempt to identify the culprit by using paper chromatography to analyze the lipstick from the potential criminals.
Solubility Rules, Chemical Change, Redox Reaction, Precipitate, Reaction Rate, Reduction, Oxidation | High School
In this lab, students investigate the use of milk of magnesia poultice to remove copper stains on masonry in copper architecture. They use chalk as the model for masonry, copper(II) chloride solution as a model for soluble copper and a freshly prepared slurry of copper phosphate as a model for a hard stain of copper on masonry. Through a series of investigations students have the opportunity to connect chemistry topics with real-world applications, such as environmental hazards, engineering practices of copper architecture, corrosion control, and structural protection.
Electron Configuration, Precipitate, Balancing Equations, Electrons, Valence Electrons, Solubility Rules, Classification of Reactions | High School
In this lesson students will complete a series of double replacement reactions to form precipitates. The precipitates will be used as a pigment to create paint.
Solubility Rules, Classification of Reactions, Precipitate, Net Ionic Equation | High School
In this lesson students will use solubility rules to predict whether the product of a double displacement or metathesis reaction will produce a precipitate. Students will then investigate a series of reactions to verify solubility rules. Finally students will determine the identity of unknown solutions based on experimental evidence.
Balancing Equations, Precipitate, Solubility Rules | High School
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**
Solubility, Solute & Solvent, Precipitate, Saturated/Unsaturated/Supersaturated | High School, Elementary School, Middle School
In this lab, students will create a supersaturated solution by dissolving borax in boiling water. They will create a snowflake using pipe cleaner to suspend in the solution, which will serve as a nucleation site for crystallization as the solution cools and remains undistributed overnight. This lab gives students an opportunity to experience the exciting crystallization process and become more familiar with an engaging chemistry spectacle!
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
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.
Net Ionic Equation, Chemical Change, Solubility Rules, Solubility, Precipitate, Balancing Equations, Chemical Change | High School
In this lab, students will mix ionic solutions to determine what combinations form precipitates.
Classification of Reactions, Conductivity, Chemical Change, Precipitate | High School
In this demonstration, students will observe a decomposition reaction that triggers a precipitate reaction that prevents a solution from conducting electricity.
Limiting Reactant, Concentration, Net Ionic Equation, Stoichiometry, Balancing Equations, Precipitate, Mole Concept, Dimensional Analysis | High School
In this lab, students will measure how much carbon dioxide they exhale by reacting their exhaled breath with limewater (calcium hydroxide solution). Students will practice writing balanced equations and completing mass-to-mass stoichiometric calculations.
Precipitate, Chemistry Basics, Reactions & Stoichiometry, Solubility Rules, Balancing Equations, Chemical Change, Chemical Change | High School, Middle School
In this lab, students use solubility rules to predict which chemical reactions will produce precipitates.
Balancing Equations, Conservation of Mass, Conservation of Matter, Conservation of Matter, Chemical Change, Chemical Change, Conservation of Mass, Polyatomic Ions, Precipitate | Middle School, High School
In this activity, students will learn how to count atoms and how to balance chemical equations using a simulation and games from PhET Interactive Simulations.