Oxidation Number
The sum of oxidation numbers in a compound.
Zero
The oxidation number of Ca.
Zero
Defined as the loss of electrons.
Oxidation
The oxidation state of a group 1 element
+1
The oxidation number of oxygen in H2O2
-1
Defined as the gain of electrons.
Reduction
The oxidation state of Br in Br2
0
Oxygen will have a positive oxidation state when combined with this element.
Fluorine
The substance that is oxidized in a redox reaction is known as this Agent.
Reducing Agent
The oxidation state of H in CaH2
-1
The oxidation number of nitrogen in NaNO2
+3
The change in oxidation number from 0 to -2 represents this type of redox change.
Reduction
The oxidation state of sulfur in Na2S2O3
+2
The oxidation state of carbon in NaHCO3
+4
Fe + 2AgCl → 2Ag + FeCl2
In the redox reaction above which species is oxidized.
Fe