Assigning Oxidation Numbers

Front

What is the oxidation number of nitrogen (N) in nitric oxide (NO)?

Back

+2

Front

What is the oxidation number of oxygen (O) in its stable elemental form, O2?

Back

0

Front

What is the oxidation number of hydrogen (H) in diatomic hydrogen (H2)?

Back

0

Front

What is the oxidation number of hydrogen (H) in sodium hydride (NaH)?

Back

-1

Front

What is the oxidation number of nitrogen (N) in dinitrogen tetroxide (N2O4)?

Back

+4

Front

What is the general rule for determining the oxidation number of an element in its elemental form?

Back

The oxidation number of an element in its elemental form is always 0.

Front

What is the oxidation number of oxygen (O) in most compounds?

Back

-2

Front

What is the oxidation number of hydrogen (H) when bonded to nonmetals?

Back

+1

Front

What is the oxidation number of hydrogen (H) when bonded to metals?

Back

-1

Front

What is the sum of oxidation numbers in a neutral compound?

Back

The sum of oxidation numbers in a neutral compound is 0.