electrolysis Flashcards
1
Q
prccess
A
the separation of two substances with an electrical current
2
Q
why do ionic compounds conduct electricity when dissolved in water
A
because their ions are free to move
3
Q
products at each electrode
A
positive ions gain electrons from the negatively charged cathode
negative ions lose electrons at the positively charged anode
4
Q
electrolysis of molten ionic compounds
A
positively charged ions(anion) are attracted to the cathode
negatively charged ions (cations) are attracted to the anode
5
Q
what metals can be used in electrolysis
A
every metal above carbon in the reactivity series potassium sodium calcium magnesium alluminium
6
Q
Explain how metals are extracted from molten compounds
A
using electrolysis you can extract a more reactive metal from the ore
