9.1 Oxidation State

Question 1

What is important about the oxidation state on an ionic compound?

Answer 1

The charges on the ions are the oxidation states.

Question 2

What can the oxidation state of oxygen be assumed to be most of the time?

Answer 2

-2

Question 3

What can the oxidation state of hydrogen be assumed to be most of the time?

Answer 3

+1

Question 4

What is the state given to the most electronegative atom in a molecules?

Answer 4

A negative oxidation state according to how ant electrons it needs to gain to have a full outer shell.

Question 5

What should the sum of the oxidation states equal to?

Answer 5

The overall charge on the molecule or ion.

Question 6

What are the overall oxidation states on atoms?

Answer 6

Zero.

Question 7

How are the oxidation states represented?

Answer 7

As Roman numerals in the names of ions and compounds.

Question 8

What is the oxidation states of oxygen in a peroxide?

Answer 8

-1

Question 9

What is the oxidation state of hydrogen in a metal hydride?

Answer 9

-1

Question 10

What type of elements have variable oxidation states?

Answer 10

Transition metals and main group non metals.