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carbon
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these questions about carbon
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Answers
1
Which of these forms of carbon is the hardest?
Graphite
Diamond
Coal
Soot
2
What gas contains carbon and is released when people and animals breathe?
Methane
Carbon dioxide
Oxygen
Nitrogen
3
Carbon only forms three covalent bonds within compounds
?
False
True
4
Are diamond and graphite allotropes of carbon?
False
True
5
Carbon has the ability to form a variety of bonds
?
False
True
6
Where in the human body is there the most carbon?
In the nails
In the bones
In the cells and organs
In the hair
7
Carbon is toxic?
never
no
yes
maybe
8
Carbon is involved in which biological process?
Evaporation
Photosynthesis
Boiling
Melting
9
The carbon atom cannot form chemical bonds with itself
?
True
False
10
Are all plastics carbon based?
False
True
11
Carbon cannot be found in the atmosphere?
True
False
12
Were are the different places carbon is found?
San Diego USA
Los Angele USA
Monotana USA
New York USA
13
What is a "carbon footprint"?
The amount of carbon a person releases into the atmosphere
The amount of coal in the ground
The footprint
The name of a volcano
14
What is Carbon?
a chemical element
non-chemical element
mineral
type of gas
15
Are oil and gas carbon-free?
False
True
16
Is carbon not a non-metal?
False
True
17
What is carbon used for?
Fossil Fuels
Food
solar panel
water consumption
18
How much carbon is there in Earths crust ?
0.025%
0.009%
0.048%
0.005%
19
How can you reduce your carbon footprint?
Use solar energy
Fly more
Drive more
Burn more trash
20
The bond between carbon and hydrogen is not polar?
True
False
21
How do plants use carbon from the atmosphere?
Through food
Through photosynthesis
Not at all
Through roots
22
Carbon cycles through Earth's systems?
False
True
23
Is the carbon really difficult or expensive to mine?
never
maybe
no
yes
24
Why is carbon monoxide dangerous?
It smells bad
It blocks oxygen in blood, wich can be deadly
It changes colour
it makes food taste bitter
25
Are black coal and diamond the same in composition?
True
False
26
Is graphite a form of carbon?
True
False
27
What is fossil fuels?
carbon-based energy formed from the remains of ancient plants and animals
found in combination wath other elements in the air
process of manufacturing
A chemical use in industrial application
28
What is the process of how elements extracted?
Heating with no pressure and no temperature
Heating with medium pressure and medium temperature
Heating with low pressure and low temperature
Heating with high pressure and high temperature
29
What makes carbon a special element in chemistry?
It is metallic
It can glow
It forms thousands of compounds
It does not occur in nature
30
Which of these does not contain carbon?
Glass
Paper
Wood
Oil
31
What is the chemical symbol for carbon?
Ca
Cu
Co
C
32
Carbon is the backbone of organic chemistry
?
False
True
33
Carbon is essential for all life on Earth
?
False
True
