SubjectCover

Question 81 of 198 in Electrolysis

The electrolysis of other molten substances

1 mark · Easy

How many electrons are required to balance the following ionic half-equation for the reduction of potassium ions during the electrolysis of molten potassium chloride?

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

Show answer

1

Common mistakes: 2

Show mark scheme and worked solution

Marking points

B1 · 1 mark · Correctly states that 1 electron is required to balance the equation.

Worked solution

K^+ has a +1 charge, so 1 electron is required: K^+ + e^- \to K

Report a problem with this question
What's wrong?