NH3 → N2 + H2 Using the chemical equation above, answer the following questions on a sheet of paper.
Make sure that your answers are clear and neat.
A) (2 pts) Identify the type of reaction. How can you tell?
B) (4 pts) Name all of the molecules found in the chemical equation.
C) (2 pts) Identify the reactants and the products for the given chemical reaction.
D) (2 pts) Balance the chemical reaction. YOU MUST show your work to receive credit.
E) (5 pts total) Answer the following stoichiometry questions using the chemical reaction:
1) (2 pts) If 5.3 moles of Na are produced from the reaction, how many moles of NH3
were used?
2) (3 pts) If you reacted 2.18 x 1026 molecules of NH3, how many moles of Hy should
be produced?
F) (7 pts) Calculate the change in energy (AH) of the reaction using bond energies. Make
sure to draw the Lewis structures for each molecule.
Bond
Energy (mol)
Band
Energy (kJ/mol)
805
H-H
C-0
O-H
464
0-0
498
C-H
NEN
945
NH
393
G) (1 pt) Determine if the chemical reaction is endothermic or exothermic.