Chemistry: Structure and bonding: Covalent bonding | Baamboozle - Baamboozle

Why can the layers of graphite easily slide off (e.g. when you use a pencil)?

The bonds between carbon layers are not covalent, they are weak intermolecular forces

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Which carbon structure can be used as a delivery system for drugs into specific sites in the body?

Fullerenes or Bucky-balls

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Does Silicon dioxide (picture) form a simple or giant covalent structure?

Giant - you can tell as it can form crystals

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Can simple molecules held together with covalent bonds conduct electricity?

No, they do not have charged particles that a free to move.

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The carbon atoms in a diamond are held together by ionic bonds [True/false]

False - non metals bond together with covalent bonds.

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Graphite can conduct electricity because it has free electrons in between the layers [True/False]

True

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What is a huge network of atoms held together by covalent bonds called?

A giant covalent structure

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What does it mean if an atom "gets the electronic structure of a Noble gas"?

They gain or lose electrons to get a full outer shell (just like the Noble gas elements)

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The smallest Fullerene/Buckyball is made of 60 atoms of which element?

Carbon

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What is the name of the intermolecular forces between water molecules?

Hydrogen bonds

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Atoms held together by covalent bonds only form small "simple" structures [True/False]

False - they can form giant structures also like diamond.

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Do giant covalent structures have high or low melting points?

High - the covalent bonds are strong.

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Does Carbon dioxide form a simple or giant covalent structure?

Simple - you can tell because it is a gas at room temp.

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