a hydrogen molecule with an initial velocity of 1200 m / s makes a collision with a molecule of oxygen at rest. The reason for the masses of the molecules is mO / mH = 16. what are the speeds of the molecules after the collision?The post a hydrogen molecule with an initial velocity of 1200 m / s makes a collision with a molecule of oxygen at rest. The reason for the masses of the… first appeared on Nursing School Essays.