Acids and Bases Do Now

Which of these pH values represent an acid?

• 4

• 8

• 12

Which of the following is an acid?

• 
• 

Tags

NGSS.HS-PS1-5

All bases have a sour taste.

• True

• False

Which of the following pH values represents a base?

• 2

• 4

• 10

Which of the following is an acid?

• 
• 

Answer explanation

Milk is not as acidic as orange juice. But milk is still an acidic chemical.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Pure water has a pH of 7. Pure water _______.

• is a base
• is a neutral substance
• could be either an acid or a base
• is an acid

Values from 0 - 14 that determine how acidic or basic a solution is called

• Punnett Square

• Matrix

• pH scale

What is the range of pH values in an acidic solution?

• 0 - 7

• 7 - 14

• pH = 7

What is the pH value of a neutral solution?

• 0 - 7

• 7 - 14

• pH = 7

Answer explanation

a neutral solution has equal amounts of H+ and OH-

H+ stands for which ion?

• hydrogen ion

• hydroxide ion

• water ion

Tags

NGSS.MS-PS1-1