Chapter 7 Study Guide

Question 1

solution

Answer 1

a uniform mixture that contains a solvent and at least one solute

Question 2

solvent

Answer 2

the part of the solution present in the largest amount

Question 3

solute

Answer 3

the substance that is present in the smallest amount

Question 4

colloid

Answer 4

a mixture that contains small, undissolved particles

Question 5

suspension

Answer 5

a mixture in which particles can be seen and easily separated

Question 6

dilute solution

Answer 6

a little solute dissolved

Question 7

concentrated solution

Answer 7

a lot of solute dissolved

Question 8

solubility

Answer 8

a measure of how much solute can dissolve in a solvent at a given temperature

Question 9

saturated solution

Answer 9

no more solute dissolves

Question 10

unsaturated solution

Answer 10

can dissolve more solute

Question 11

supersaturated solution

Answer 11

has more dissolved solute than is predicted at a given temperature

Question 12

acid

Answer 12

any compound that increases the amount of hydronium ions/hydrogen ions when dissolved in water

Question 13

corrosive

Answer 13

“wear away” other materials

Question 14

indicator

Answer 14

a compound that changes color when in contact with an acid or base

Question 15

base

Answer 15

any compound that increases the number of hydroxide ions (OH-) when dissolved in water

Question 16

hydrogen ion

Answer 16

hydrogen atom that has lost its electron

Question 17

hydroxide ion

Answer 17

a negative ion, made of oxygen and hydrogen

Question 18

pH scale

Answer 18

a range of values from 0 to 14, which expresses the concentration of hydronium ions

Question 19

neutral

Answer 19

neither acidic nor basic

Question 20

neutralization

Answer 20

reaction between an acid and a base

Question 21

salt

Answer 21

any ionic compound made from a neutralization reaction