chemistry

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__NH3(g) + __ O2(g) → __ N2(g) + __ H2O(g)

When the reaction above is completely balanced, the coefficient for NH3 will be

(a)
2.
(b)
3.
(c)
4.
(d)
6.

• chemistry -

I get
4 NH3 + 3 O2--> 2 N2 + 6 H2O

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