Process Of Electrolysis

Question 1

What is STEP 1 of electrolysis?

Answer 1

1- we melt the ionic compounds/ dissolve them so that the ions are free to move

Question 2

What is STEP 2 of electrolysis?

Answer 2

2- if we then insert electrodes connected to a DC power source, the current passes through the molten ionic compound/solution (electrolyte)

compound= when in solid form

solution= when dissolved in water

Question 3

What is STEP 3 of electrolysis?

Answer 3

3- the ions are attracted to the electrodes

Question 4

What is STEP 4 of electrolysis?

Answer 4

The ions then GAIN or LOSE electrons at the electrodes becoming ATOMS again

Question 5

What ions do ANODES attract?

Answer 5

Negative ions (- ions) “anions”

Question 6

If the - ion is group 7 what is produced at the anode?

Answer 6

The group 7 elements is produced as a gas

Question 7

What is produced at the anode if the - ions are NOT GROUP 7?

Answer 7

Oxygen is produced

Question 8

What do CATHODES attract?

Answer 8

Cathodes attract = + ions (cations)

Question 9

What is produced in the CATHODE if the + ion (metal) is MORE reactive than hydrogen?

Answer 9

• if the + ion is MORE reactive than hydrogen then HYDROGEN is produced

(Potassium, sodium, calcium, magnesium, zinc iron)

Question 10

What is produced in the cathode if the + ion is LESS reactive than hydrogen?

Answer 10

If + ions (metals) are LESS reactive than hydrogen then the METAL is produced

(Copper, Gold, silver”