6 Select the correct answer.
Nitrogen (N) and hydrogen (H) react with each other to produce ammonia (NH3). This reaction is shown in an equation as N2 + 3H2 - 2NH3.
What is the ratio of nitrogen atoms to hydrogen atoms in ammonia?
OA. 1 to 2
OB. 1 to 3
OC. 2 to 1
OD. 2 to 3
OE. 3 to 1
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OE. 3 to 1

For example, the compound ammonia always has three hydrogen atoms for every nitrogen atom. This is a 3 to 1 ratio of hydrogen to nitrogen. This same 3:1 ratio holds for every sample of ammonia, under all physical conditions.

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.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)