Acids and Bases

A substance that is 3 on the pH scale would be a(n):

• acid

• base

• neutral

• solute

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator

• neutralizer

• corrosive

• electricity

What color does litmus paper turn in the presence of an acid?

• blue

• black

• green

• red

Which of the following is NOT a characteristic of an acid?

• sour taste

• corrosive

• it feels slippery

• it can burn the skin

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

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.

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DOK Level 2: Skill/Concept

A substance that is a 10 on the pH scale would be a(n) ____.

• acid

• neutral

• base

• indicator

At what location on the pH scale can you find acids?

• number 7 on the pH scale is acidic

• below 7

• above 7

• you can find acids all throughout the scale

According to the pH scale, which item is more acidic than lemons?

• battery

• vinegar

• milk

• blood

According to the pH scale, which item is a stronger base than soap?

• baking soda

• ammonia solution

• tomato

• bleach