<span>The chemical reaction of a reversible reaction is actually
governed by Le Chatelier’s principle. It states that when more reactants are
introduced into the system, the reaction will proceed forward to create more
products. So since Hydrogen is a reactant and Nitrogen is also reactant so
adding more Hydrogen makes more products hence reducing the Nitrogen
concentration.</span>
For average speed, we divide the total distance covered by the total time taken.
After doing that, you will see that Jane has the lowest average speed.
THE ALTERNATIVE IS 4.8g alternative c
The SAME number of molecules are in ANY “mole” of a compound or element. So, you only need to ... 24 g116 g/mol=0.207 moles of FeF3.