Properties of Substances and Mixtures

Flashcards covering definitions and examples of various types of substances and mixtures.

Pure Substance

A material with a homogeneous appearance and specific properties that distinguish it from all other substances.

Element

A pure substance made of only one type of atom, such as oxygen.

Compound

A pure substance made of a mixture of different types of atoms, such as water (H2O).

Mixture

A combination of two or more substances where the chemical identities remain unchanged, like mud.

Heterogeneous Mixture

A mixture that can be distinguished with the naked eye, where the components are not evenly distributed, as in a granola bar.

Homogeneous Mixture

A mixture that can only be distinguished using a light microscope, such as milk.

Solution

A homogeneous mixture where the components are evenly distributed and cannot be distinguished even under a light microscope, like vinegar.

Suspension

A mixture containing large particles that are visible and can be seen floating, such as mustard.

Colloid

A mixture where two substances do not dissolve, but the particles are small enough to remain suspended and cannot separate, like mayonnaise.

Composite Materials

A mixture of multiple mixtures, such as blood.

Mechanical Mixture

A mixture that can be separated by hand, like a salad.