Unit 3 Written Flashcards
D.C (direct current)

From magnesium to silver








A


A







Name the piece of apparatus labelled X

Ion bridge


electrolyte




Carbon (graphite)




It conducts electricity


It is insoluble


It would increase

A
A
metals always conduct electricity due to delocalised electrons
F
Metals below H+ ions in the electrochemical series cannot displace H+ ions from solution
A
Metals below H+ ions in the electrochemical series cannot displace H+ ions from solution
B A C
Electrons flow from metal higher in electrochemical series to one lower down
A
Metals including Al and above can only be obtained from their ores by Electrolysis
E
Hydrogen. Metals are oxidised (lose their electrons) to the H+ (aq) ions allowing them to form a covalent bond and come off as hydrogen gas
A&D
Ionic solutions will conduct as the ions are free to move.
Metals always conduct due to their delocalised electrons
B
(biggest difference between metals on echem series)
B
(biggest difference between metals on echem series)
D
Metal X must be higher up and biggest difference is between Mg and Ag
(LO 15)
Electrolyte
Ion bridge
D
Iron
ammonium nitrate
Blue
Purple