Chemistry Notes

Learn chemistry. Here you will find a collection of chemistry notes, projects, worksheets, and labs.

Abegg's Rule in Chemistry — Learn about Abegg's rule in chemistry. See example, exceptions and why the rule is important in the octet rule and chemical bonding.

Abegg’s Rule in Chemistry

This entry was posted on April 3, 2022 by Anne Helmenstine (updated on April 5, 2022)

Coordinate Covalent Bond Definition — Get the coordinate covalent bond definition and examples. Another name for this bond is a dative bond or dipolar bond.

Coordinate Covalent Bond – Dative Bond

This entry was posted on April 2, 2022 by Anne Helmenstine (updated on April 4, 2022)

Lewis Acid and Base Theory — Learn about Lewis acid and base theory. See examples of Lewis acids and bases and learn how they differ from Bronsted acids and bases.

Lewis Acid and Base Theory

This entry was posted on March 27, 2022 by Anne Helmenstine (updated on April 7, 2022)

Law of Definite Proportions — Learn about the law of definition proportions in chemistry. This is also called Proust's law or the law of constant composition.

Law of Definite Proportions – Law of Constant Composition

This entry was posted on March 16, 2022 by Anne Helmenstine (updated on March 24, 2022)

Isotropic vs Anisotropic — Learn the difference between isotropic and anisotropic. Get the definitions of the terms and examples in materials science and optics.

Isotropic vs Anisotropic – Definition and Examples

This entry was posted on March 12, 2022 by Anne Helmenstine (updated on March 21, 2022)

Law of Multiple Proportions — Learn about the law of multiple proportions. Get the definition, see examples, and discover the limitations of this chemistry law.

Law of Multiple Proportions – Dalton’s Law

This entry was posted on March 10, 2022 by Anne Helmenstine (updated on March 17, 2022)

Adhesion vs Cohesion — Learn the difference between adhesion and cohesion. See examples, including how these processes affect water molecules.

Adhesion vs Cohesion

This entry was posted on March 9, 2022 by Anne Helmenstine (updated on March 30, 2022)

Chemical Formula Definition — Get the chemical formula definition and examples. Learn about the different types of chemical formulas for compounds.

Chemical Formula Definition and Examples

This entry was posted on March 8, 2022 by Anne Helmenstine (updated on March 14, 2022)

Bronsted Lowry Acid and Base — Learn about Bronsted Lowry acid and base theory. Get examples of acids, bases, and their conjugates. Relate to Arrhenius and Lewis theories.

Bronsted Lowry Acid and Base Theory

This entry was posted on February 22, 2022 by Anne Helmenstine (updated on March 27, 2022)