Acids, bases, physical and chemical

How does a base solution feel?

• slippery

• dry

• scratchy

How does an acidic solution feel?

• slippery

• sticky

• rough

How do bases taste?

• sour

• bitter

• sweet

How do acids taste?

• sweet

• bitter

• sour

What is the pH of pure water?

• 1

• 7

• 14

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

• acid

• base

• neutral

• solute

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

• orange juice
• dish soap
• vinegar
• lemons

Since some acids seemingly "eat away" certain substances, acids are ____.

• bitter
• sliipery
• corrosive
• weak

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

• blue
• black
• green
• red

Bases are located where on the pH scale?

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