Learners examine the method for calculating the atomic weight of copper from the natural percent composition of each of its two isotopes.

In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.

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.

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.

In this animated and interactive object, learners examine how a variable voltage is obtained from a variable resistor that is wired as a potentiometer across a fixed DC power supply.

Learners identify combination, decomposition, displacement, and combustion types of redox reactions. They also watch a video clip that demonstrates the reaction of sodium and water.

Learners view colorful animations showing the operation of a VR stepper motor.

The learner reads an explanation of all of the elements that comprise a future-state map. A map is shown.

In this learning activity you'll review independent and dependent variables and view a demonstration of the positive and negative correlation.

BIOL 10

How well did you study for chapter 2

If you answer the question correctly you will get a point .

Mrs wall is the bomb.com

You have to match the correct answer with the correct question in order to get points.