Chapter 1 Definitions

Question 1

Matter

Answer 1

Physical material of the universe

Question 2

Property

Answer 2

Any characteristic that allows us to recognize a particular type of matter and to distinguish it from other types

Question 3

Elements

Answer 3

A substance that cannot be decomposed into simpler substances

Question 4

Atoms

Answer 4

The smallest representative particle of an element. The almost infinitesimally small building blocks of matter.

Question 5

Molecule

Answer 5

A combination of two or more atoms.

Question 6

States of Matter

Answer 6

The three forms that matter can assume: solids, liquids, gas.

Question 7

Pure substance

Answer 7

matter that has a fixed composition and distinct properties.

Question 8

Compounds

Answer 8

A substance composed of two or more elements united chemically in definite proportions.

Question 9

Mixtures

Answer 9

A combination of two or more substances in which each substance retains its own chemical identity.

Question 10

Law of constant composition/law of definite proportions

Answer 10

A law that states that the elemental composition of a compound is always the same.

Question 11

Solution

Answer 11

A mixture of substances that has a uniform composition; a homogenous mixture.