Is Matter Around Us Pure?

Vocabulary flashcards for the topic: Is Matter Around Us Pure?

Substance

A kind of matter that cannot be separated into other kinds of matter by any physical process.

Pure Substance

A form of matter that has a definite composition and distinct properties, made of only one entity.

Mixtures

Combinations of different substances, either elements or compounds, which retain their individual properties.

Homogeneous Mixture

A mixture which has a uniform composition throughout.

Heterogeneous Mixture

A mixture which contains physically distinct parts and has a non-uniform composition.

Solute

The substance that is dissolved in the solvent and is present in a lesser amount.

Solvent

The substance in which the solute is dissolved and is present in a greater amount.

Alloys

Mixtures of metals or a metal and a non-metal, unseparable by physical methods, retaining properties of constituents and varying in compositions.

Suspension

A heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium.

Dispersed Phase

The solute-like component of the dispersed particles in a colloid form.

Dispersion Medium

The component in which the dispersed phase is suspended.

Aerosol

A colloidal solution with dispersed phase solid/liquid and dispersing medium gas.

Colloidal Solution

The mixture in which one substance of dispersed insoluble particles is suspended throughout the other substance.

Tyndall Effect

The phenomenon of scattering of a beam of light by colloidal particles when passed through a colloidal solution.

Foam

A colloidal solution with dispersed phase gas and dispersing medium solid/liquid.

Elements

Basic form of matter that cannot be broken down by chemical reactions.

Compounds

Substances composed of two or more elements, chemically combined with one another in a fixed proportion.

Metalloids

Elements with intermediate properties between those of metals and nonmetals.