Chemistry

HideShow resource information
  • Created by: 13aj
  • Created on: 18-04-17 15:52
Step 1 of atmosphere creation
Volcanoes releasing carbon dioxide, ammonia and water vapour (steam) creating the first armosphere
1 of 28
Step 2 of atmosphere creation
Earth cools causing steam to condense, forming oceans. This happened fast
2 of 28
Step 3 of atmosphere creation
Photosynthesising bacteria form in the oceans. Carbon dioxide levels decrease
3 of 28
Step 4 of atmosphere creation
Bacteria releases oxygen in the atmosphere. Oxygen levels increase.
4 of 28
Step 5 of atmosphere creation
Oxygen reacts with ammonia- nitrogen made - the most abundant gas in the atmosphere
5 of 28
Step 6 of atmosphere creation
Oxygen combines to form ozone. It prevents ultraviolet light from entering the Earth. It helps prevent skin cancer
6 of 28
what is the percentage of oxygen in the air
21%
7 of 28
what is the percentage of nitrogen in the air
78%
8 of 28
what is the percentage of carbon dioxide in the air
0.04%
9 of 28
what is the percentage of noble gases in the air
0.9%
10 of 28
What is made from electrolysis of water
oxygen and hydrogen
11 of 28
Hydrogen is made at the...
cathode (-)
12 of 28
Oxygen is made at the...
anode (+)
13 of 28
Twice the volume of... as... is made, this is because the formula of water is
hydrogen as oxygen
14 of 28
What is the carbon cycle for over millions of years
.
15 of 28
what is the carbon cycle for over the past 100 years
.
16 of 28
What are the effects of global warming
1. Changing weather patterns e.g. drier, hotter summers in some parts of the world leading to drought. 2. Flooding due to increases rainfall in some areas. 3. Quicker melting of ice caps and glaciers. 4. Rising sea level
17 of 28
Carbon capture
Scientists are thinking of storing the carbon dioxide produced by burning fossil fuels under the sea or underground in geological formations
18 of 28
Global warming is...
High levels of carbon dioxide causes the temperature of the Earth to rise. Heat cannot escape as easily
19 of 28
In fuels such as oil and petrol their are... , compounds such as... are present. When these burn they form... such as... . ... forms when... is released from factories. Acid rain forms when... reacts with... to form...
impurities. Sulphur and nitrogen. Polluting gases. Sulfur dioxide and oxides of nitrogen. Acid rain. Sulfur dioxide.Sulfur dioxide. Rain. Sulfuric acid
20 of 28
Acid rain...
kills plants (forests) and aquatic life like fish. Damages buildings and statues made of limestone (calcium carbonate) and meals e.g. bridges
21 of 28
What is sulfur scrubbing
The process of removing sulfur dioxide from exhaust flue gases of fossil fuel powdered plants.
22 of 28
Hydrogen test
If a lit splint is placed in hydrogen it will create a squeaky 'pop' sound
23 of 28
Oxygen test
Oxygen re-lights a glowing splint
24 of 28
Carbon dioxide test
Carbon dioxide turns clear limewater milky
25 of 28
If a slat containing ammonium reacts with sodium hydroxide it forms...
ammonia gas
26 of 28
What will ammonia gas do
Ammonia gas will change damp red litmus paper blue
27 of 28
ammonium chloride + sodium hydroxide ----
sodium chloride + ammonia + water
28 of 28

Other cards in this set

Card 2

Front

Step 2 of atmosphere creation

Back

Earth cools causing steam to condense, forming oceans. This happened fast

Card 3

Front

Step 3 of atmosphere creation

Back

Preview of the front of card 3

Card 4

Front

Step 4 of atmosphere creation

Back

Preview of the front of card 4

Card 5

Front

Step 5 of atmosphere creation

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 The earth and its atmosphere resources »