Question

4, Assign oxidation states for the two elements in the compound OF2. Explain the rules that you use.
5. For each of the following oxidation-reduction reactions of metals and nonmetals, identify the element that is oxidized and the element that is being reduced.
a) 4Fe(s) + 3O2(g) --> 2Fe2O3
b)Zn(s) + 2AgNO3(aq) -->Zn(NO3)2 (aq) + 2Ag(s)
c)2K(s) + Cl2(g) -->2KCl(s)
d)2Ca(s) + O2(g) --> 2CaO(s)

Answer 1

a)Fe oxidized ,O2 Reduced b)Zn ,Ag c)K , Cl2 d)Ca , O2 oxidized and reduced respectively.