Having a very high surface area means that...

Nanoparticles are extremely reactive

Explain why nanoparticles are added into sports equipment

They make them more strong and durable

The carbon atoms are arranged in rings

Nanoparticles are more reactive than larger particles of the same substance because...

There's a larger surface area to volume ratio

The melting and boiling point of a fullerene will be.... because...

High because there are lots of covalent bonds

Why do fullerenes conduct electricity?

Due to having free 'delocalised' electrons

Which of these is NOT a problem with using nanoparticles?

They have replaced older natural materials

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Nanotechnology

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Questions 14

Answers

1
True or false; fullerenes can conduct electricity
False
True
2
Having a very high surface area means that...
Nanoparticles are expensive
Nanoparticles cannot be combusted
Nanoparticles are extremely reactive
Nanoparticles are unreactive
3
Explain why nanoparticles are added into sports equipment
They make them more strong and durable
They provide lubrication
They provide extra colour
4
In a fullerene...
The carbon atoms are arranged in rings
The carbon atoms are arranged in layers
The carbon atoms are not attached
The carbon atoms are arranged randomly
5
Nanoparticles are more reactive than larger particles of the same substance because...
There's a larger volume
There's a larger surface area to volume ratio
There's a larger volume to surface area ratio
There's a larger amount of particles
6
The melting and boiling point of a fullerene will be.... because...
Low because there are few covalent bonds
High because there are few covalent bonds
High because there are lots of covalent bonds
Low because there are lots of covalent bonds
7
Why do fullerenes conduct electricity?
Due to having free 'delocalised' electrons
Due to there being many carbon atoms
Due to having lots of strong covalent bonds
Due to having a large space in the central cavity
8
Calculate the surface area of the cube
54cm3
36cm2
162cm2
54cm2
9
Nanoparticles are measured in...
m
nm
mm
cm
10
Nanoparticles are between....
1-10nm in size
1-1000nm in size
1-10,000nm in size
1-100nm in size
11
A fullerene is...
Made out of oxygen atoms
Made out of carbon atoms
Made out of sulfur atoms
Made out of hydrogen atoms
12
A nanometre is...
One trillionth of a metre
One millionth of a metre
One thousandth of a metre
One billionth of a metre
13
Which of these is NOT a use of nanotechnology?
Antibacterial wound dressings
Sunscreens
Car tyres
Sports equipment
14
Which of these is NOT a problem with using nanoparticles?
They have replaced older natural materials
The benefits and risks of using them must be understood
They could be harmful to the body and we don't know it
We don't know the long term impacts of using them

Nanotechnology Flashcards | StudBud