Chapter 14.1

Question 1

What are groups of two or more atoms linked by chemical bonds to form distinct units?

Answer 1

Molecules

Question 2

What is the sum of the atomic masses of all the atoms in the molecule?

Answer 2

Molecular mass

Question 3

What are substances composed of atoms of two or more elements bonded together?

Answer 3

Compounds

Question 4

What are molecules with the same number and types of atoms but different arrangements of atoms?

Answer 4

Isomers

Question 5

What is a substance that has the same physical properties throughout?

Answer 5

Homogeneous substance

Question 6

What is a three-dimensional representation of a molecule that shows its shape and position of atoms?

Answer 6

Molecular model

Question 7

What is composed of several pure substances that are physically mixed but not chemically united?

Answer 7

Mixture

Question 8

What is a homogeneous mixture that exists because of attraction between atoms, molecules, or ions?

Answer 8

Solution

Question 9

What are dissolved substances like salt or sugar?

Answer 9

Solutes

Question 10

What is the substance into which solutes dissolve, such as water or alcohol?

Answer 10

Solvent

Question 11

What is the term for substances in which the molecules of mixed substances are not completely mixed?

Answer 11

Heterogeneous mixture

Question 12

What is a mixture containing tiny suspended clumps or particles?

Answer 12

Colloid

Question 13

What is a heterogeneous mixture whose particles are large enough that they will settle?

Answer 13

Suspension