The equation shows the reaction between ammonia (NH₃) and oxygen (O₂).
__NH₃ + __O₂ → __NO + __H₂O
from left to right, which set of coefficients balances the equation to follow the law of conservation of mass?
a. 4, 5, 4, 6
b. 5, 4, 5, 4
c. 5, 4, 4, 5
d. 4, 6, 4, 5