Balancing redox harder

Question 1

step 1 Balance elements in the equation other than………

Answer 1

O and H

Question 2

step 2 Balance the oxygen atoms by adding the appropriate number of

Answer 2

of water ( H2O
) molecules to the opposite side of the equation.

Question 3

Step 3 balance hydrogen by adding

Answer 3

Balance the hydrogen atoms (including those added in step 2 to balance the oxygen atom) by adding H+
ions to the opposite side of the equation

Question 4

Add up the charges on each side. Make them equal by adding enough electrons ( e−
) to the more ………….side

Answer 4

positive

Question 5

The e−
on each side must be made equal; if they are not equal, they must be multiplied by appropriate integers (the lowest common multiple) to be made the same.

Question 6

step 6 The half-equations are added together, cancelling out the electrons to form one balanced equation. Common terms should also be

Answer 6

canceled out