pH Scale BrainPOP Quiz

Which of these substances is acidic?

• 
• 
• 
• 

What is the most likely pH of a tube of toothpaste?

• 3

• 5

• 7

• 9

How is a standard hydrogen atom different from a hydrogen ion?

• A hydrogen ion has an extra electron

• A hydrogen ion is missing an electron

• A hydrogen ion has an extra proton

• A hydrogen ion is missing a proton

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-PS1-2

An extremely strong base would have a pH of:

• 1

• 7

• 9

• 14

What might happen if buffers did not exist within the human body?

• Our blood and other bodily fluids might become too acidic or basic.

• Our stomach acid would not be able to break down food.

• We would not be able to process glucose within our cells.

• We would not be able to inhale oxygen into our lungs.

Tags

NGSS.HS-LS1-3

This piece of pH paper has been dipped into:

• An acid

• A base

• A pH-neutral substance

• A buffer

Why do metals dissolve when you dip them in acid?

• The buffers in the metal are eaten away by the acid.

• The electrons in the metal are stripped away by hydrogen ions.

• The hydrogen ions in the acid react with the hydroxyl ions in the metal.

• The acid reacts with the basic metal to form carbon dioxide gas and salt.

Tags

NGSS.MS-PS1-5

What might happen if acidic chemicals were emitted into the air by factories? Choose the best answer.

• The acid would destroy metallic elements in the air

• The acid would be neutralized by bases within clouds

• Acid rain might destroy ecosystems and farmland

• Violent chemical reactions would take place within the atmosphere

Tags

NGSS.MS-ESS2-5

NGSS.MS-LS2-4

Healthy environments for life have a pH closest to:

• 1

• 3

• 7

• 10