Correct rate relationship for 2NO + 2H2 to N2 + 2H2O

1. A.
   $- \frac{1}{2}\frac{\text{ }d\lbrack NO\rbrack}{dt} = \frac{d\left\lbrack H_{2}O \right\rbrack}{dt}$
2. B.
   $- \frac{d\lbrack NO\rbrack}{dt} = \frac{d\left\lbrack H_{2}O \right\rbrack}{dt}$
3. C.
   $\ - \frac{3}{2}\frac{\text{ }d\lbrack NO\rbrack}{dt} = \frac{d\left\lbrack H_{2}O \right\rbrack}{dt}$
4. D.
   $2\frac{\text{ }d\left\lbrack H_{2} \right\rbrack}{dt} = \frac{d\left\lbrack N_{2} \right\rbrack}{dt}$

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1. A.
   $\frac{1}{2}\frac{\text{ }d\lbrack NO\rbrack}{dt} = - \frac{d\left\lbrack H_{2} \right\rbrack}{dt}$
2. B.
   $\frac{d\left\lbrack N_{2} \right\rbrack}{dt} = \frac{1}{2}\frac{\text{ }d\left\lbrack H_{2}O \right\rbrack}{dt}$
3. C.
   $\ - \frac{d\left\lbrack N_{2} \right\rbrack}{dt} = \frac{1}{2}\frac{\text{ }d\left\lbrack H_{2}O \right\rbrack}{dt}$
4. D.
   $\frac{d\left\lbrack H_{2} \right\rbrack}{dt} = - \frac{1}{2}\frac{\text{ }d\left\lbrack {\text{ }N}_{2} \right\rbrack}{dt}$

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1. A.
   $\frac{1}{2}\frac{\text{ }d\lbrack NO\rbrack}{dt} = - \frac{d\left\lbrack H_{2} \right\rbrack}{dt}$
2. B.
   $\frac{d\left\lbrack N_{2} \right\rbrack}{dt} = - \frac{1}{2}\frac{\text{ }d\left\lbrack H_{2} \right\rbrack}{dt}$
3. C.
   $\frac{d\left\lbrack H_{2}O \right\rbrack}{dt} = \frac{d\left\lbrack N_{2} \right\rbrack}{dt}$
4. D.
   $\frac{d\left\lbrack H_{2}O \right\rbrack}{dt} = \frac{1}{2}\frac{\text{ }d\left\lbrack {\text{ }N}_{2} \right\rbrack}{dt}$

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