Something that has mass and occupies space.

Fundamental unit of which elements are made.

Substances that contain only one type of atom.

Substances that are made by bonding atoms together in a specific way.

A substance with variable composition

A substance without variable composition

Substances made up of two or more different elements chemically combined in fixed ratios.

Elements that cannot be broken down into simpler substances.

Chemical reactions that produce energy.

Pure substances with a uniform composition.

Describe what cations, anions, and ions are in general.

Cations are positive, anions are negative, and ions are charged particles.

Cations are negative, anions are positive, and ions are charged particles.

Cations are neutral, anions are positive, and ions are negative.

Cations and anions are positive, and ions are negative.

Separation of a solid from a liquid by using filter paper

A separation process that depends on the boiling points of the substances

An agent that is used to distillate water

What properties of elements are considered when arranging elements in the periodic table?

Whether they are metals or non-metals.

What group of elements do they belong to

What is the law of constant composition?

A given compound always contains elements in exactly the same proportion by mass

The fact that a substance made of two or more different elements joined together in a specific way is called a compound

Elements are made up of tiny particles called atoms

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