Hydrogen Cyanide, HCN, Is Manufactured by the Following Reaction:
2 $\rarr$

Hydrogen cyanide, HCN, is manufactured by the following reaction:
2 NH_3(g) + 3 O_{2 (g)} + 2 CH_{4 (g)} $\rarr$ 2 HCN _(g) + 6 H₂O _(g)
If 250.0 kg each of NH₃, O₂ and CH₄ react, what would be the theoretical yield in kg of HCN?