Chem Disc Quiz 5

Question 1

Why are CO2 and H2O contributors to global warming?

Answer 1

Their bonds will stretch unevenly and trap the heat by absorbing infrared radiation

Question 2

Is H20 technically a big contributor?

Answer 2

No, H20’s lifetime is about 12 days so much shorter

Question 3

Processes that add C (in the form of CO2) into the atmosphere?

Answer 3

Deforestation (HA)
Burning fossil fuels (HA)
Respiration
Ocean

Question 4

Processes that remove CO2 from the atmosphere?

Answer 4

Reforestation (HA)
Photosynthesis
Dissolving in the ocean

Question 5

GW Mitigation strategies

Answer 5

decrease energy consumption (FF)
alternative energy sources
capture CO2 before it’s released
remove CO2 from atmosphere (experimental)

Question 6

Anthropogenic sources of CH4

Answer 6

melting permafrost, rice cultivation, crude oil production, landfills, and livestock

Question 7

Natural sources of CH4

Answer 7

marshes and thermites

Question 8

GWP for CH4

Answer 8

86

Question 9

Lifetime of CH4

Answer 9

12 years

Question 10

Percentage of contribution to GW CH4

Answer 10

25%

Question 11

GWP CO2

Answer 11

1

Question 12

Lifetime of CO2

Answer 12

100 years

Question 13

Percentage of contribution to GW CO2

Answer 13

75%

Question 14

Isotope

Answer 14

same number of protons, different number of neutrons

Question 15

Alpha particle

Answer 15

4
a
2

Question 16

How to detect alpha emission

Answer 16

loose 4 on mass number
loose 2 on atomic number
The element will change

Question 17

Beta particle

Answer 17

0
B
-1

Question 18

How to detect beta emission

Answer 18

Mass number stays the same
Add +1 to atomic number

Question 19

Half life

Answer 19

time it takes for half of the substance to be gone