Naming Binary Ionic Compounds Containing Fixed Oxidation State Cations
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Learners examine a table containing the names of common cations and anions. They then check their knowledge by answering a series of questions.
Electromagnetic Radiation
In this animated and interactive object, learners examine the inverse proportionality of wavelength and frequency and their relationship to the speed of light.
Conversion Between Mass and Moles of an Element
By Dr. Miriam Douglass, Dr. Martin McClinton
Atomic weights are used to convert the mass of a sample into the number of moles of the element in the sample and vice versa. Four examples are provided for practice.
The Combined Gas Law
Learners combine Boyle's Law and Charles's Law to solve for the pressure, volume, and temperature of a gas sample under two sets of conditions.
Ideal Gas Law
In this interactive object, learners use the ideal gas law to solve a practice problem.
Real Gases
In this animated activity, learners compare the van der Waals equation with the Ideal Gas Law.
Percent Composition of Compounds
Learners examine the method used to calculate the mass percent of an element in a compound. Three examples and one problem illustrate the method.
Covalent Bonds
By Jill Larson
In this animated object, students examine what happens when electrons share molecules.
Double Replacement Reactions
In this interactive object, learners identify charges on ions, write new formulas based on charge, and balance equations using coefficients.
The Kinetic Theory of Gases
In this animated activity, learners examine what gases are composed of and how their particles interact. They also consider several assumptions that form the basis for the Kinetic Theory of Gases.
Calculating Formula Weight and Molecular Weight
In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.
Atomic Weight
Learners read the definition of atomic weight and obtain the weights of elements by viewing the Periodic Table and charts that list atomic weights by name or symbol.
The Solid State
In this well-illustrated object, learners examine the structures and properties of the four types of solids: molecular, metallic, ionic, and covalent network. Five interactive questions are provided.
Oxidation Numbers
Learners assign oxidation numbers to atoms in neutral compounds and in polyatomic ions. Six examples are worked through in detail, and three problems are provided.
Learning the Elements of the Periodic Table by Name or Symbol
By Mona Wenrich
Students practice identifying common elements from the periodic table by name or symbol.
Oxidation-Reduction Reactions
Learners examine the meaning of oxidation, reduction, and half-reaction, and watch a film showing the deposition of copper metal from the reduction of copper (II) ion by aluminum. A brief quiz completes the activity.
Identifying Compounds and Ions
Learners complete an exercise to match chemical formulas with the names of binary compounds, tertiary compounds, and ions.
Solubility of Ionic Compounds in Water
Learners view movie clips to determine the solubility of two ionic compounds. They also examine a solubility chart and predict the solubility of compounds.
Isotopes
The definition of an isotope is illustrated using the three isotopes of carbon. The three isotopes of hydrogen are discussed as exceptions.
Gas Volume vs. Pressure (Boyle's Law)
Boyle's Law states that gas volume varies inversely with the pressure at constant temperature and is described by the equation PV = constant. An example of a sample of gas at two conditions of P and V is used to illustrate the law.
Calculating Gas Density from Standard Molar Volume
By Dr. Miriam Douglass
Learners calculate gas density from the standard molar volume and observe how the density increases with the increasing molecular weight of the gas.
Shapes of Simple Molecules - Part 2
Learners examine how five or six groups of electrons around a central atom cause the shape of the molecule to be trigonal bipyramidal, seesaw, T-shaped, linear, octahedral, square pyramidal, or square planar. Seven examples and three interactive questions are provided in this animated activity.
Product Yields in Chemical Reactions
Learners examine the meaning of theoretical yield, actual yield, and percent yield. They test their knowledge by solving two problems.
Moles
In this animated object, students are introduced to moles as a measurement.
Boiling Point of a Liquid
Learners examine how the boiling point increases with increasing pressure. An example from industry is given.