Students read an explanation of chemical formulas in this animated activity. A quiz completes the object.
Match each balanced chemical equation
In this animated object, learners examine the kinds of physical and chemical changes that occur in substances. They practice identifying examples of each.
In this interactive object, learners determine the limiting reagent and the excess reagent in chemical reactions. Learners test their knowledge by solving three problems.
Learners read this review of chemical hair bonds after completing learning objects on the peptide, disulfide, salt, and hydrogen bonds. Students may e-mail their quiz answers to their instructor.
In this animated object, learners examine how the heating or cooling steps in a manufacturing process work to control a chemical reaction.
In this animated lesson, learners read about the disulfide bond, the second strongest chemical bond in the hair. This bond can only be altered by chemicals.
In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.
Learners use the coefficients in a balanced equation to develop the mole ratios of reactants and products involved in the reaction. Five interactive examples illustrate the method, and students test their knowledge by working four problems.
In this animated object, learners examine synthesis, decomposition, exchange, and reversible reactions.
In this animated and interactive object, learners examine kinetic and potential energy as well as the first law of thermodynamics and the flow of energy between a system and its surroundings. Students also answer questions about exothermic and endothermic reactions
Learners examine the meaning of theoretical yield, actual yield, and percent yield. They test their knowledge by solving two problems.
In this animated object, learners examine the properties of the peptide bond and how the bond relates to the structure of hair.
Learners will understand the technical terms used in the context of the SDS to help them interpret its information.
The learner will understand the structural organization of the SDS and be able to find pertinent safety information using the SDS.
In this interactive object, students examine a type of chemical bond known as the "hydrogen bond."
Ions are electrically charged particles obtained from an atom or from a chemically bonded group of atoms by adding or removing electrons. Eight examples illustrate the number of protons, neutrons, and electrons in positive ions (cations) and in negative ions (anions).
Students read an introduction to the lab equipment used to contain and dispense chemicals. A quiz completes the activity.
Learners complete an exercise to match chemical formulas with the names of binary compounds, tertiary compounds, and ions.
In this interactive object, learners calculate the amount of heat evolved or absorbed in chemical reactions. Four practice problems are provided.