B. A chemist studies the reaction below. 2NO(g) + Cl 2 (g) 2NOCl(g) He performs three experiments using different concentrations and measures the initial reaction rates. Experiment [Cl 2 ] (mol/L) [NO] (mol/L) Initial Rate ((mol/L)/s) 10.30.4 0.02 20.30.8 0.08 30.60.8 0.16. Which two experiments should you compare to find the rate order of NO? . What is the rate order of NO? Explain how you know. What is the overall reaction order of this reaction? Write the rate law. Solve for k. Really need help.!

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied