Chemistry - 18/09/17 Flashcards
1
Q
What process involves changing a gas to a liquid?
A
Condensation.
2
Q
What process involves changing a liquid to a gas?
A
Vaporisation or Evaporation.
3
Q
What is sublimation?
A
The process of changing a solid to a gas.
4
Q
What two states of matter does melting involve?
A
Solid and liquid.
5
Q
Name a giant covalent structure.
A
Diamond, graphite.
6
Q
Which bonding is the strongest?
A
Covalent bonding.
7
Q
What two substances does ionic bonding take place between?
A
A metal and a non-metal.
8
Q
What happens with electrons in covalent bonding?
A
They are shared between the atoms.
9
Q
If an atom loses an electron, what charge does it have?
A
A positive charge.
10
Q
What is an ion?
A
An atom which has lost or gained electrons, giving it a charge.
