C10-C13 Flashcards
1
Q
what is oxidation and reduction
A
Oxidation - loss of electrons
Reduction - Gain of electrons
2
Q
Why cant you use electrolysis on Iron
A
Iron is not reactive enough
3
Q
Explain why aluminium is extracted by a different method rather than heating
the ore with carbon
A
Aluminium compounds are stable so carbon is not strong enough to produce aluminium from its core
4
Q
What is electrolysis ?
A
The decomposition of a compound using electricity
5
Q
What charges are the cathode and Anode
A
cathode - negative
Anode - positive
6
Q
Why is oxygen formed at the Anode
A
Hydroxide ions from water loose electrons to form oxygen
7
Q
Describe the structure of metals
A
Regular arrangement of positive ions
surrounded by a sea of delocalized electrons
