Electrolysis Of Aqueous Salts

Question 1

What does water break down into?

Answer 1

H+ + OH-

Question 2

What are the positive ions present?

Answer 2

The metal and hydrogen

Question 3

What is formed at the cathode?

Answer 3

The list reactive metal

Question 4

What are the negative ions?

Answer 4

The non metal and OH-

Question 5

What is the order of most reactive in non metals?

Answer 5

Halogens>hydroxide>other negative ions

Question 6

What is going to be formed at the anode?

Answer 6

The most reactive negative ion if it’s a halogen, but otherwise oxygen and water is gonna be formed

Question 7

How do test for gas?

Answer 7

Halogens black blue litmus paper

Oxygen should relight a glowing splint

Hydrogen will produce a squeeky poo with an insert lit splint

Question 8

What happens at the anode in terms of observations?

Answer 8

Gas/bubbles

Question 9

What observations are there when copper is formed?

Answer 9

Red/brown solid

Question 10

How to balance sodium chloride (hydrogen)

Answer 10

2h+ + 2e- = H2

Question 11

What is half equation for hydroxide?

Answer 11

4OH- = O2 + 2H2O + 4e-