Module 2 - ch 4 - Oxidation Rules

Question 1

What is the first key rule for calculating oxidation states/numbers?

Answer 1

All elements in their natural state have the oxidation number zero.

Question 2

What is the second key rule for calculating oxidation states/numbers?

Answer 2

The oxidation number of the atoms of any molecule add up to zero

Question 3

What is the third key rule for calculating oxidation states/numbers?

Answer 3

Oxidation numbers of the components of any ion add up to the charge on that ion

Question 4

What is the first rule for calculating oxidation states/numbers?

Answer 4

The oxidation number of elements in groups 1,2 and 3 are always +1, +2, or +3 respectively.

Question 5

What is the second rule for calculating oxidation states/numbers?

Answer 5

The oxidation number of Fluorine is always -1

Question 6

What is the third rule for calculating oxidation states/numbers?

Answer 6

The oxidation number of Hydrogen is usually +1

Question 7

What is the fourth rule for calculating oxidation states/numbers?

Answer 7

The oxidation number of oxygen is usually -2

Question 8

What is the fifth rule for calculating oxidation states/numbers?

Answer 8

The oxidation number of Chlorine is usually -1

Question 9

List the key rules of oxidation in order

Answer 9

1) All elements in their natural state have the oxidation number zero
2) Oxidation number of the atoms of any molecule add up to zero
3) Oxidation numbers of the components of any ion add up to the charge on that ion

Question 10

List the rules of oxidation in order

Answer 10

1) The oxidation number of elements in groups 1,2 and 3 are always +1, +2 or +3 respectively
2) The oxidation number of Fluorine is always -1
3) The oxidation number of Hydrogen is usually +1
4) The oxidation number of Oxygen is usually -2
5) The oxidation number of Chlorine is usually -1

Question 11

How many key rules of oxidation are there?

Answer 11

3

Question 12

How many other rules of oxidation are there?

Answer 12

5