Solutions Acids and Bases Review

If the hydroxide ion (OH^-) concentration is greater than the hydronium ion (H₃O⁺) concentration, then the solution is…

• basic

• acidic

• neutral

• salty

If the hydronium ion (H₃O⁺) concentration is greater than the hydroxide ion (OH^-) concentration, then the solution is…

• basic

• acidic

• neutral

• salty

A student recorded the pH of fresh cow’s milk as it sat at room temperature and curdled over a period of 5 days using an electronic pH meter. What does the change in the pH of milk indicate?

• The milk turned more acidic as it curdled

• The milk became neutral as it curdled

• the milk turned more basic as it curdled

• The milk remained the same as it curdled

Tags

NGSS.MS-PS1-2

In the lab situation shown in the table, which substance would be classified as the strongest acid?

• liquid dishwashing detergent

• pure water

• vinegar

• bleach

Tags

NGSS.MS-PS1-2

What is the result of a neutralization reaction between an acid and a base?

• Salt and water

• Acid and water

• Base and water

• Gas and water

Tags

DOK Level 2: Skill/Concept

Which of the following is an example of an acid in an aqueous solution?

• NaCl

• HCl

• KOH

• NH₃

Which of the following is a property of a strong base in an aqueous solution?

• It has a pH close to 7

• It completely dissociates in water

• It does not conduct electricity

• It has a sour taste

Which of the following is a characteristic of a solution with a pH of 13?

• It is acidic

• It is neutral

• It is basic

• It is neither acidic nor basic

What happens to the pH of an acidic solution when a base is added?

• The pH decreases

• The pH increases

• The pH remains the same

• The pH becomes neutral

• 4

• 10

• 7

• 14