Acids and Bases

If an acid is combined with a base of equal strength, the result will most likely be

• neutral solution.

• stronger acid.

• impossible to tell without testing the pH.

• stronger base

Which of the following statements is correct?

• Blue litmus paper turns red when placed in a base.

• Red litmus paper turns blue when placed in a base.

• Blue litmus paper stays blue when placed in an acid.

• Red litmus paper stays red when placed in a base.

Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.

• Acids; pH less than 7

• Acids; pH greater than 7

• Bases; pH greater than 7

• Bases; pH less than 7

Which of the following is a property of both acids and bases?

• They both taste sour.

• They both feel slippery.

• They both conduct electricity.

• They both turn litmus paper the same color.

Tags

DOK Level 2: Skill/Concept

Which is a characteristic of a BASE? Select all that apply.

• tastes sour

• tastes bitter

• feels slippery

• turn litmus paper blue

• pH 0-7

What is a property of bases?

• Slippery touch

• Sour taste

• Ability to dissolve metal

• Ability to form hydronium ions

What is the effect of adding an acid to a base?

• The solution becomes more acidic.

• The solution becomes more basic.

• The solution becomes neutral.

• The solution remains unchanged.

Tags

DOK Level 2: Skill/Concept

Bases do not react with ​ (a)   or carbonates, taste ​ (b)   , feel ​ (c)   , and turn ​ (d)   litmus paper ​ (e)   .

• metals

• bitter

• slippery

• red

• blue

• sour

• sweet

• dry

Which one of the following is an example of a base? (a)  

• orange juice

• dish soap

• vinegar

• lemons

Bases, also known as ​ (a)   will turn litmus paper ​ (b)   . This is because they have a pH ​ (c)   . They taste ​ (d)   .

• alkali and OH-

• blue

• above 7

• bitter

• below 7

• H+

• red

• sour