ph Scale, Properties of Matter, Counting Atoms

The pH scale is a range from:

• 1-7
• 0-14
• 1-5
• 1-20

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?

• Both of the solution are bases

• Both of the solution are acids

• The Baking soda is an acid and the Bleach is a base

• The baking soda is a base and the Bleach is an acid.

On the pH scale higher numbers indicate

• acids
• bases

Feels slippery.

• Acids
• Bases
• All

Substances that taste sour like lemon juice tend to be classified as

• Acids

• Bases

• Salts

• All

Substances like dark chocolate that have a bitter taste, usually indicates that it would be classified as a

• Acids

• Bases

• Salts

• All

What might happen if you mixed a strong acid with an equally strong base?

• You would see an explosive chemical reaction.
• The acid would destroy the base.
• The base would destroy the acid.
• You'd wind up with a pH-neutral substance.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

What does this picture show?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

What does this picture show?

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1