Acids and Bases

Which option below places the pH values in the correct order, from WEAKEST ACID to STRONGEST ACID?

• 1,4,5,6

• 6,4,3,1

• 7,9,11,14

• 13,12,10,8

Tags

NGSS.MS-PS1-2

Which of the following chemical formulas is NOT an acid?

• HBr

• HF

• HCl

• LiOH

HF is...

• an acid

• a base

• a salt

• an ionic compound

KOH is ...

• an acid

• a base

• a salt

• an ionic compound

Which of the following statements about acids is true?

• They taste sweet.

• They taste sour.

• They have a pH between 8-14.

What would be considered the weakest base? 

• 8

• 14

• 7

• 11

Milk is a very weak acid. What might its pH value be?

• 6

• 7

• 4

• 12

Bases turn blue litmus paper red.

• True

• False

Acids are neutralised by...

• Bases

• Metals

• Water

• Hydrogen gas

Tags

NGSS.MS-PS1-5

When equal amounts of acid are mixed with a base they produce a solution with a pH...

• Greater than 7

• Lower than 7

• Equal to 7