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chemistry
gases in the atmosphere
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Created by
Millie Smith
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Cards (26)
What is the percentage of nitrogen in air?
78%
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What is the percentage of argon in air?
1%
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What is the percentage of oxygen in air?
21%
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What is the percentage of carbon dioxide in air?
0.04%
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What color flame does magnesium oxide produce?
Bright
white
flame
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What color flame does water produce?
Blue flame
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What color flame does sulfur dioxide produce?
Pale blue
flame
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What is thermal decomposition?
Heating a
substance
to form simpler substances
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What is the reaction for thermal decomposition of metal carbonates?
Metal carbonate decomposes into:
Metal oxide
Carbon dioxide
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How does the atmosphere function in relation to heat energy?
It acts as an
insulating blanket
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What is the greenhouse effect?
The warming caused by
greenhouse gases
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What are the main greenhouse gases?
Carbon dioxide
Methane
Water vapor
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What causes an increase in the greenhouse effect?
Excessive
greenhouse gases
in the atmosphere
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How do farm animals contribute to methane production?
Through
waste decomposition
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What are the main human activities contributing to increased CO2 levels?
Burning
fossil fuels
and
deforestation
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What is a significant source of methane emissions?
Farm animals
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How does deforestation affect carbon dioxide levels?
It reduces
photosynthesis
, increasing
CO2
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What are the products of complete combustion of fossil fuels?
Carbon dioxide
, water, and
energy
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What is produced when there is insufficient oxygen during combustion?
Carbon monoxide
and
soot
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How does soot contribute to environmental issues?
It causes
smog
and
global dimming
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What effect does carbon monoxide have on the body?
It replaces oxygen in
haemoglobin
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How are nitrogen oxides formed?
From high
temperature
reactions of nitrogen and
oxygen
in
cars
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What are the effects of nitrogen oxides on health and the environment?
Damage
lungs
and form
acid rain
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What are the consequences of acid rain?
Damages buildings
Corrodes
metals
Damages plants
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What are the products of incomplete combustion of fossil fuels?
Carbon monoxide
and
soot
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How is carbon monoxide from incomplete combustion harmful?
Carbon monoxide takes the place of oxygen in
hemoglobin
, reducing oxygen transport
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