Classification of Matter Flashcards

Front

Pure substance

Back

has a fixed composition—composed of just one type of particle (atom or molecule).

Front

Mixture

Back

A physical combination of two or more substances.

Front

Element

Back

made of only one type of atom

Front

Compound

Back

formed from two or more elements chemically combined

Front

Homogeneous mixture

Back

• A mixture that appears to be the same throughout

Front

Heterogeneous mixture

Back

A mixture that does not appear to be the same throughout

Front

Classifying saltwater

Back

homogeneous mixture

Front

Reasoning: Why is air a mixture?

Back

multiple gases not chemically combined

Front

Is Water (H₂O) a compound or mixture

Back

Compound

Front

Reasoning: Why is iron a pure substance?

Back

of only one type of atom (Fe)