C11 Air and Water

What does chlorination do to the water?

• Removes microorganisms
• Cleans the water
• Makes the water taste nice
• Removes twigs and sediment

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Th components of filtration are separated based on

• boiling point

• solubility

• particle size

What are two things that water treatment plants need to do?

• Clean and disinfect the water
• Boil and evaporate the water
• Remove the animals and plants
• Add chemicals and remove pesticides

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the % of nitrogen in air?

• 75%

• 71%

• 78%

• 60%

Which is not a problem caused by acid rain?

• breathing difficulties

• erosion of marble statues

• dying trees

• lowered pH of lakes

Name 2 compounds in unpolluted air.

• carbon monoxide and argon

• sulfur dioxide and nitrogen dioxide

• carbon dioxide and water vapour

• nitrogen and oxygen

Which air pollutants can cause acid rain?

• Nitrogen oxides and sulfur dioxide

• Sulfur dioxide and carbon monoxide

• Nitrogen oxides and ozone

• Sulfur dioxide and ozone

The Haber process is the industrial process for making...

• Ammonia

• Sulfuric Acid

• Margarine

• Salts

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

What are the raw materials for the Haber process?

• Hydrogen and Oxygen

• Hydrogen and Nitrogen

• Water and Nitrogen

• Oxygen and Nitrogen

What would happen if the temperature of a Haber process is reduced to below  $450\degree C$  ? (Choose 2)

• Less ammonia would be produced

• The reaction would be faster

• The reaction would be slower

• More ammonia would be produced