Electrolysis

Question 1

what is the charge of the cathode?

Answer 1

negative

Question 2

what is the charge of the anode?

Answer 2

positive

Question 3

in the electrolysis of a melt, what products do you get?

Answer 3

the expected ones, eg aluminium oxide gives Al and O2

Question 4

how can you tell what are the products at the cathode in the electrolysis of a solution?

Answer 4

the less reactive ion is formed, so either the h+ becomes h2 from the water or the metal atom is formed if it is less reactive (so copper, silver, gold, etc)

Question 5

how can you tell what are the products at the anode in the electrolysis of a solution?

Answer 5

if it is a halogen then that forms. if it is nitrate,carbonate,etc, the OH- becomes water and O2

Question 6

why are the products in the electrolysis of solutions not as simple as the electrolysis of melts?

Answer 6

because you have to take the H+ and OH- of the water into account