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what mass of H must be reactes with

reaction :
Thermochemistry WS # 3
|Enthalpy and Chemical Reactions
\3 # 2 ( 8 ) + N 2 ( 8 ) 7 2 NH| 3 ( 8 ) + 2709 J
|1 . What mass of hydrogen must be reacted with excess nitrogen to produce 5000 . J of energy based on the
( ans 1 1 . 2 8 H 2 )
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