Classification of Matter

Flashcards on the classification of matter including definitions of key terms such as elements, compounds, and mixtures.

Matter

Anything that has mass and takes up space.

Pure Substances

Substances that contain only one type of matter.

Elements

Pure substances made of only one type of atom; cannot be broken down into simpler substances under normal lab conditions.

Compounds

Substances made of atoms of two or more elements that are chemically combined.

Mixture

A combination of two or more substances that are not chemically combined.

Homogeneous Mixture

A mixture in which the composition is uniform throughout.

Heterogeneous Mixture

A mixture in which the composition is not uniform throughout.

Chemical Symbol

A one or two-letter representation of an element, such as H for Hydrogen or Na for Sodium.

Examples of Elements

Oxygen (O), Nitrogen (N), and Mercury (Hg).

Examples of Compounds

Water (H2O), Sodium Chloride (NaCl), and Carbon Dioxide (CO2).