Acid and Base

What is a base ?

• A shape

• Simple thing

• A substance which is slippery to touch

• none off them

Which of the following pH values represent a strong base?

• pH=2

• pH=7

• pH=10

• pH=13

Soap is a weak base.  What is true about the taste of bases?

• they taste sour
• they taste sweet
• they taste bitter
• they taste salty

Which of these solutions is an acid?

• Dish Soap: pH of 12
• Tomato Soup: pH of 4
• Baking Soda: pH of 9
• Drain Cleaner: pH of 14

From which point to which point in the pH scale is Base

• 7.1- 14

• 0- 6.9

• 6.2- 9.1

• 12- 14

Tags

NGSS.MS-PS1-2

Acid and base _________ each other.

• cancel

• neutralize

• mix

• friend

turns red litmus paper into blue

• Acid

• Base

• Both acid and base

Is vinegar acid or base?

• acid

• base

• neutral

Examine the results (color change) of the pH paper shown in the picture.  What type of substance was tested?

• an acid
• a base
• a neutral substance
• none of the above

A base is also referred to as a __________ substance.

• amnesia

• alkali

• awesome

• annoying