Giant covalent structures (Edexcel GCSE Chemistry): Quizzes
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Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What are giant covalent structures?
What are giant covalent structures?
Huge networks of atoms with covalent bonds
Which of these is an example of a giant covalent structure?
Which of these is an example of a giant covalent structure?
Diamond
What is true about the melting points of giant covalent structures?
What is true about the melting points of giant covalent structures?
They are very high
Why do giant covalent structures have high melting points?
Why do giant covalent structures have high melting points?
Strong covalent bonds need lots of energy
Do most giant covalent structures conduct electricity?
Do most giant covalent structures conduct electricity?
No, they do not
Why can't most giant covalent structures conduct electricity?
Why can't most giant covalent structures conduct electricity?
No free-moving charged particles
How are carbon atoms arranged in graphite?
How are carbon atoms arranged in graphite?
In layers of hexagons
Why is graphite soft and slippery?
Why is graphite soft and slippery?
Layers slide over each other easily
How many bonds does each carbon atom form in graphite?
How many bonds does each carbon atom form in graphite?
Three bonds
What happens to the fourth electron in each carbon atom in graphite?
What happens to the fourth electron in each carbon atom in graphite?
It is free to move
Why can graphite conduct electricity?
Why can graphite conduct electricity?
Free electrons can move through layers