Hi. I am having a hard to understanding chemistry. currently the problem I'm working on is C2H4+3O2=2CO2+2H20. I need to know the total and exothermic/ endothermic.​

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.

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

the objects have the same charge is correct.

nathan lee