The starting materials for this reaction are ethylene glycol and terephthalic acid. The letters A and B represent organic groups that are unreactive. What reactive organic functional group does ethylene glycol (containing the A functional group) contain?

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the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.