Learners follow a four-step process to determine the empirical formula of a compound from the masses of its constituent elements. The molecular formula is determined in a fifth step using the molecular weight of the compound.

In this well-illustrated activity, learners examine the three types of intermolecular forces: dipole-dipole forces, London or Van der Waals forces, and the hydrogen bond. Two interactive questions are included.

Students use algebra to rearrange formulas and solve for the missing volume, density, or mass quantity.

Learners observe that the volume of one mole of any gas is 22.4 L at standard temperature and pressure. An illustration shows that only the mass of the molar volume differs with the identity of the gas.

In this learning activity you'll discover how to calculate the best priced items and improve your financial literacy.

Students use the pyramid method to solve percent problems. The pyramid grid provides a visual way to set up the equation.

Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.

Learners read a description of torque and study the factors that cause its magnitude to change. A brief quiz completes the activity.

Learners use basic math skills in a workplace situation.

Subtracting integers

You will compete to win tic tac toe by solving the system of equations problems.

Choose the correct answer

One step equations