6.) For the reaction, 4 NH3 + 3 O2 ↓ 2 N2 + 6 H2O, the rate of N2 formation at a certain time was measured as 0.123 mole/L·s (M/s.) a.) Write the rate equality for this reaction. b.) What is the reaction rate at that time? c.) What is the rate of disappearance of NH3 at that time?

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