2.2 The Properties Of Water

Question 1

What is the definition of the word - mixture

Include an example

Answer 1

Physical combination of two or more substances

Cinnamon sugar

Question 2

What is the definition of solute

Include an example

Answer 2

Substance that is being dissolved

The salt - in saltwater

Question 3

What is the definition of the word - solvent

Include an example

Answer 3

The one doing the dissolving

Water

Question 4

What are suspensions?

Include an example.

Answer 4

The mixture of water and an undissolved substance.

Blood

Question 5

What does the word -solution - mean

Include an example

Answer 5

All components are evenly dissolved.

Kool-aid

Question 6

What makes pure water neutral?

Answer 6

Lack of ions and dissolved particles.

Has a pH of 7

Question 7

What does pH measure?

Answer 7

The amount of hydrogen ions

Question 8

On the pH scale which numbers are basic? Which are acidic? Which is neutral?

Answer 8

Basic - 8-14
Neutral-7
Acidic - 1-6

Question 9

Identify two solutions that have more H+ ions than OH - ions

Answer 9

This would be anything acidic

Lemon juice, stomach acid

Question 10

Identify two solutions that have more OH- ions than H+ ions.

Answer 10

This would be anything basic

Blood, bleach, soap

Question 11

How would you buffer a solution that has a pH of 12?

Answer 11

Add an acidic buffer

Question 12

Why are buffers important to living things?

Answer 12

They prevent sudden drastic changes in pH