Properties of Matter

Deposition

A change directly from the gas to solid state without becoming liquid

Sublimation

A change directly from the solid to the gaseous state without becoming liquid

Physical Change

A change in a substance that does not involve a change in the identity of the substance

Chemical Change

A change in matter that produces one or more new substances

State/Phase of Matter

A form that matter can take - solid, liquid, or gas.

Extensive physical property

A physical property that depends on how much of the substance there is.

Physical Property

A property that can be observed, measured, or changed without changing the substance itself.

Pure Substance

A sample of matter, either a single element or a single compound, that has definite chemical and physical properties

Reactants

A starting material in a chemical reaction

Gas

A state of matter in which it will expand freely to fill the whole of a container, having no fixed shape. Molecules are moving very fast; far apart from one another.

Solid

A state of matter in which the substance has a definite shape and a definite volume. Molecules vibrate in place

Liquid

A state of matter in which the substance has a definite volume but takes the shape of it's container. Molecules flow over one another

Matter

Anything that has mass and takes up space.

Evaporation

Changing from a liquid to a gas when heat is added.

Freezing

Changing from a liquid to a solid when heat is taken away.

Melting

Changing from a solid to a liquid when heat is added.

Condensation

The change of state from a gas to a liquid

Products

The elements or compounds produced by a chemical reaction.

Intensive physical property

a physical property that remains the same no matter how much of a substance is present

Chemical Property

a property of matter that describes a substance's ability to participate in chemical reactions

Law of Conservation of Mass

the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes