Acids and Bases

Which is the correct set of acid properties.

• sour taste, corrosive, change litmus from red to blue

• sour taste, corrosive, change litmus from blue to red

• sweet taste, slippery, change litmus from blue to red

• sour taste, slippery, change litmus from blue to red

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14

Which is true?

• pH of less than 7 is basic; pH of more than 7 is acidic

• pH of less than 7 is acidic; pH of more than 7 is basic

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

• Acid

• Base

• Neither (Neutral)

Tags

NGSS.HS-PS1-1

Is pure water acidic, basic, or neutral?

• Acidic

• Basic

• Neutral

Tags

NGSS.MS-PS1-2

Bases are located where on the pH scale?

• any number can be a base
• below 7
• above 7
• number 7 is a base

Bleach and oven cleaner are:

• strong acids
• weak acids
• strong bases
• weak bases

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

• sour taste
• corrosive
• it feels slippery
• it can burn the skin

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