In the reaction below, hydrogen peroxide decomposes to water. mm h2o2 = 34.02 g/mol mm h2o = 18.02 g/mol mm o2 = 32 g/mol 2h2o2 → 2h2o + o2 if 14.3 moles of h2o2 is decomposed, how many grams of oxygen gas are produced? show all your work to get full credit.

(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

answer: gold foil experiment - he shot alpha particles at a gold foil

explanation: