REDOX

Question 1

What are the rules for oxidation numbers for neutral elements?

Answer 1

They’re always zero.

Question 2

What is reduction?

Answer 2

Gaining of electrons

Question 3

What is the loss of electrons called?

Answer 3

Oxidation

Question 4

What is the gaining of electrons called?

Answer 4

Reduction

Question 5

What is oxidation?

Answer 5

The loss of electrons.

Question 6

What do oxidation numbers always have to add up to?

Answer 6

The charge of the compound

Question 7

What is the oxidation number of Oxygen usually?

Answer 7

-2

Question 8

What is usually the oxidation number of monoatomic ions?

Answer 8

The charge of the ion

Question 9

What’s the oxidation number of Cl-?

Answer 9

-1

Question 10

Is there a set oxidation number for transition metals?

Answer 10

No. Each transition element has multiple oxidation numbers depending on what they’re reacting with.

Question 11

In terms of oxidation numbers, what is reduction?

Answer 11

Decrease of oxidation number.

Question 12

In terms of oxidation number, what is oxidation?

Answer 12

Increase of oxidation number.

Question 13

What is always the oxidation number for fluorine?

Answer 13

-1

Question 14

What’s chlorine, bromine and iodine’s usual oxidation number?

Answer 14

-1

Question 15

What is the exception for the oxidation numbers of Chlorine, bromine and iodine?

Answer 15

When in a compound with oxygen, their number changes.

Question 16

What is always the oxidation number for neutral compounds?

Answer 16

Zero.

Question 17

What is a general rule for periodic table groups charges and oxidation number?

Answer 17

The charges of an element in a certain group is a lot of the time also the oxidation number for elements.

Question 18

What’s the oxidation number for Hydrogen usually?

Answer 18

+1