Distinguishing Elements, Compounds, and Mixures

What is matter?

• Anything that is big.

• Anything that ocuppies space.

• Atoms.

• The number of protons and electrons in the nucleus.

What are pure substances?

• Substances in which the each particle is a like.

• A combination of two or more substances that maintain their chemical properties and don't form bonds.

• Not uniform in structure or composition.

• Uniform in structure or composition.

What are compounds?

• A combination of two or more more substances that maintain their chemical properties and don't form bonds.

• Pure substances made of two or more different elements.

• Not uniform structure or composition.

• Uniform structure anda composition.

What are mixtures?

• Substances in which each particle is a like.

• Pure substances made of two or more different elements.

• Matter that can't be separated into simpler components without chemical change.

• Substances made up of different types of elements and compounds.

An element is a ______ .

• pure substance

• mixture

A compound is a ______ .

• pure substance

• mixture

Compounds of nonmetal atoms form ______.

• ions

• molecules

Compounds of metal atoms and nonmtal atoms form ______ .

• ions

• compounds

Which is an example of an element?

• H2 O

• Lemonade

• Au

• a trail mix

Which is an example of a compound?

• Lemonade

• NaCl

• A trail mix

• Co