CHEMISTRY | Lessons 7-8 | Solubility / Acids and Bases

Question 1

Definition of:
Solubility

Answer 1

How well a substance dissolves (usually in water)

Question 2

Definition of:
Very soluble

Answer 2

A substance that dissolves well in water

Question 3

Definition of:
Slightly soluble

Answer 3

A substance that doesn’t dissolve well in water

Question 4

Definition of:
Precipitate

Answer 4

A solid with a low solubility

Question 5

How is a precipitate formed?

Answer 5

When a solution is made, any solids formed that don’t dissolves are precipitates

Question 6

Definition of:
Precipitation

Answer 6

The process of a precipitate forming when two ionic solutions are mixed

Question 7

Definition of:
Acid

Answer 7

A compound that dissolves in water to form a solution with a pH lower than 7

Question 8

Definition of:
Base

Answer 8

A compound that dissolves in water to form a solution with a pH higher than 7

Question 9

What does the pH of a substance indicate?

Answer 9

How acidic or basic a substance is

Question 10

What is pH a measure of?

Answer 10

The number of hydrogen ions present in a solution

Question 11

What are buffers? (in reference to pH)

Answer 11

substances found in acidic/basic solutions to prevent changes in pH

Question 12

True or False:
Acids have a bitter taste

Answer 12

False:
Acids have a sour taste, while bases have a bitter taste

Question 13

True or False:
Bases have a bitter taste

Answer 13

True

Question 14

What are the 3 kinds of pH measurements and what do they indicate?

Answer 14

0pH - 6pH = Acid
7pH = Neutral
8pH - 14pH = Base

Question 15

True or False:
When an Acid and a Base react together, their properties disappear

Answer 15

True:
When an Acid and a Base react together, they neutralize

Question 16

Definition of:
Neutralization

Answer 16

When an Acid and a Base react together to produce water and a kind of salt