Section 1.2 Clasification Of Matter

Question 1

(usually referred to simply as a substance) is matter that has distinct properties and a composition that does not vary from sample to sample.

Answer 1

Pure substance

Question 2

are substances that cannot be decomposed into simpler substances.

Answer 2

Elements

Question 3

are substances composed

of two or more elements; they contain two or more kinds of atoms

Answer 3

Compounds

Question 4

are combinations of two or more substances in which each substance retains its chemical identity.

Answer 4

Mixtures