Assigning Oxidation States

Front

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

Back

0

Front

What is the oxidation state of sulfur (S) in HSO₄^-?

Back

+6

Front

What is the oxidation number of phosphorus (P) in K₃PO₄?

Back

+5

Front

What is the oxidation state of carbon (C) in CH₄?

Back

-4

Front

What is the oxidation number of chromium (Cr) in Cr₂O₇^2-?

Back

+6

Front

What is the oxidation state 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 oxidation state of nitrogen (N) in NH₃?

Back

-3

Front

What is the oxidation number of alkali metals in compounds?

Back

+1