How do you find oxidation numbers of elements?

Answer 1

Normally an element is zerovalent; that is it has an oxidation number of #0#.

When we assign oxidation numbers to atoms in molecules we formally separate charges and electrons. An element is conceived to have a #0# oxidation state, in that electron transfer has not taken place.

In the simple combustion rxn, for example:

#C + O_2 rarr CO_2#

A redox process is amply demonstrated by the carbon, which acts as the reductant and transfers electrons to the oxidant.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Jeremiah Adams

Determine rules and assign oxidation numbers based on guidelines. For common elements, follow standard values. Adjust for overall charge neutrality if needed.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.