science chemistry

N2 (g) + 3H2 (g) -> 2NH3 (g)

assume 4 molecules of nitrogen and 9 molecules of hydrogen are present.

after complete reaction, how many molecules of ammonia are produced.

do i go from N to NH3 or H to NH3?

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  1. ammonia: 6 produced
    H2: 0 remain since the 3H2 where combined
    Moles of N2 remain: 1 since 4-3=1

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