C1- Air quality OCR 21st century

HideShow resource information
Where did the carbon dioxide in the Earths early atmosphere come from?
Volcanoes gave out CO2, H2O and nitrogen.
1 of 11
What are the main gases in the Earths current atmosphere?
Nitrogen, oxygen and argon
2 of 11
What is the percentage of nitrogen and oxygen in the Earths current atmosphere?
Nitrogen = 78%, Oxygen = 21%
3 of 11
What is formed first nitrogen monxide or dioxide?
Monoxide
4 of 11
How is nitrogen dioxide formed?
nitrogen monoxide must be oxidised to become nitrogen dioxide.
5 of 11
What is a chemical reaction?
When atoms are rearranged.
6 of 11
What is a hydrocarbon?
Two elements hydrogen and carbon mixed together.
7 of 11
Why are reactants different from the products they make?
The products will have different properties because the elemtents are rearranged.
8 of 11
What main element is in coal?
Carbon.
9 of 11
Where is sulphur found?
In fossil fuels as an impurity.
10 of 11
How doe sulphur dioxide leave the atmosphere?
Through acid rain.
11 of 11

Other cards in this set

Card 2

Front

What are the main gases in the Earths current atmosphere?

Back

Nitrogen, oxygen and argon

Card 3

Front

What is the percentage of nitrogen and oxygen in the Earths current atmosphere?

Back

Preview of the front of card 3

Card 4

Front

What is formed first nitrogen monxide or dioxide?

Back

Preview of the front of card 4

Card 5

Front

How is nitrogen dioxide formed?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all C1- Air Quality resources »