Chemistry

How do you determine a balanced chemical equation when you only know the formulas of the reactants? In this interactive demonstration, the method of continuous variation is presented to the students for the oxidation–reduction reaction of sodium hypo...

Avogadro's mole number, 6.02 x 1023, is huge! Help clarify the concept of the mole by showing your students 6.02 x 1023 atoms of four different elements. Students will quickly grasp the ideas of mass, moles and molar mass when they compare these four...

If a little is good, more is better, right? Not necessarily! In a chemical reaction, the amount of product that can be obtained depends on the mole ratio of reactants. If the moles of one reactant are limited, it does not matter how much of a second ...