Redox Reactions (PC)

Question 1

What is an oxidation number?

Answer 1

The number of electrons an atom uses to bond with any other atom

Question 2

What is the oxidation number of an uncombined element such as
С, Н, Оз?

Answer 2

0

Question 3

What is the oxidation number of combined oxygen such as in H,0?

Answer 3

-2

Question 4

What is the oxidation number of combined oxygen such as in H,0?

Answer 4

-2

Question 5

What is the oxidation number of oxygen in peroxides?

Answer 5

-1

Question 6

What is the oxidation number of combined hydrogen such as in
NH,, H,S?

Answer 6

+1

Question 7

What is the oxidation number of hydrogen in metal hydrides such as LiH?

Answer 7

-1

Question 8

What is the oxidation number of a simple ion?

Answer 8

Charge on the ion

Question 9

What is the oxidation number of combined fluorine such as in NaF, CaF??

Answer 9

-1

Question 10

When an element has more than one stable oxidation number how is it indicated?

Answer 10

Written as a Roman numeral

Question 11

What is the oxidation number of Fe in iron (III) chloride?

Answer 11

+3

Question 12

What are oxyanions?

Answer 12

Negative ions that have an element along with oxygen