Question

How is an unknown oxidation state of an element within a compound determined?

a. it is determined from known oxidation state of an element within a compound determined
b. it is always the same as the most likely oxidation state
c. it will be the same as the charge on the compound
d. it will be the same in the products is in the reactants

Answer 1

A. -Apex I just took the quiz

Step-by-step explanation:

It is determined from known oxidation states of other elements

Answer 2

Answer is: a. it is determined from known oxidation state of an element within a compound determined.

Oxidation state (oxidation number) shows the degree of oxidation of an atom in a chemical compound.

For example, chlorate ion (ClO₃⁻) has negative charge.

One oxygen atom in this anion (negatively charged ion) has the oxidation number -2. There are three oxygen atoms in chlorate anion.

x + 3 · (-2) = -1.

x = -1 + 6.

x = +5; the oxidation number of chlorine.

The oxidation state of Cl (chlorine) in chlorate ion is +5.