Elements, Compounds and Mixtures VMA

A substance made of only one kind of matter and having definite properties

Pure substance

A pure substance that cannot be broken down into other substances

Element

The basic particle from which all elements are made

Atom

A substance made up of atoms of two or more different elements joined by chemical bonds

Compound

A mixture in which you can see the different parts. They are in different forms/phases

Heterogeneous mixture

A mixture in which you cannot see the different parts Ex milk and water

Homogeneous mixture

A mixture that forms when one substance dissolves another.

Solution

A mixture in which particles can be seen and easily separated by settling or filtration

Suspension

A mixture containing small, undissolved particles that do not settle out.

Colloid

A characteristic of a pure substance that can be observed without changing it into another substance

Physical property

A liquid's resistance to flowing

Viscosity

The temperature at which a solid becomes a liquid

Melting point

The temperature at which a liquid changes to a gas

Boiling point

A process that separates materials based on the size of their particles.

Filtration

The process of purifying a liquid by boiling it and condensing its vapors

Distillation

A change of matter from one form to another without a change in chemical properties

Physical change

A characteristic of a pure substance that describes its ability to change into different substances

Chemical property

A change in matter that produces one or more new substances

Chemical change

The ability of a substance to burn

Flammability

How readily a substance combines chemically with other substances.

Reactivity

A solid that forms from a solution during a chemical reaction.

Precipitate

any mixture of two or more immiscible liquids in which one liquid is dispersed in the other

Emulsion