Chapter 18-20- atmosphere

Question 0

Greenhouse effect

Answer 0

Gases in the troposphere absorb infrared radiation and reflect some of it back as heat

Question 1

Ozone

Answer 1

Absorbs uv rays through its creation and degradation

Required at the stratosphere 10-30km range

Question 2

Acid rain

Answer 2

Oxides of sulphur/nitrogen form acids that form solution with rain water

SO2/SO3 fully react with water
2NO2 forms both acidic products

Question 3

CFCs (chlorofluorocarbons)

Answer 3

Catalyst for the breakdown of ozone

Like enzymes they can be reused

Question 4

Carbon monoxide

Answer 4

Binds to haemoglobin (oxygen)

Kills at 200ppm

Question 5

Photochemical smog

Answer 5

Forms on cloudless windless days in which hot air rises trapping reactants together

Question 6

Properties of nitrogen

Answer 6

Insoluble

Low reactivity due to freaking triple bond

Question 7

Oxygen

Answer 7

Slightly soluble
Supports combustion
Reacts with most metals and nonmetals

Question 8

Carbon dioxide

Answer 8

Rarely supports combustion
Denser than air
Sublimes
Slightly water soluble