Unit 3 Part 2 Flashcards
1
Q
What is electricity
A
Electricity is a flow of electrons or ions in a definite direction (either left or right)
2
Q
What are electrolytes
A
A solution which conducts
3
Q
What is the definition of addition polymerisation
A
A reaction in which a number of small unsaturated monomers join to form a larger molecule. No other product is formed.
4
Q
Define condensation polymerisation
A
A reaction in which different monomers join to form a larger molecule with the elimination of water
5
Q
Where does electricity in a battery come from
A
A chemical reaction
6
Q
How can metals be extracted from their ores
A
By heating, heating with carbon or cabon monoxide or by electrolysis
7
Q
A reaction in which electrons are gained is called
A
Reduction
8
Q
A reaction in which electrons are lost is called
A
Oxidation
