Assignment:
Question 1. What is the oxidation number of nitrogen in N2O4 (dinitrogen tetraoxide?
Question 2. Nickel(II) nitrate is reduced to nickel metal in an oxidation-reduction reaction. Which is true?
a Nickel ion gains 2 electrons.
b Nickel ion loses 2 electrons.
c Nickel ion gains 1 electrons.
d Nickel ion loses 1 electrons.
e Nickel metal gain 2 electrons.
f Nickel metal loses 2 electrons.
Provide complete and step by step solution for the question and show calculations and use formulas.