Why do you think that if you drop two balls, exactly two balls rise on the other side at a similar speed? Why doesn’t one ball fly off quickly instead? Why don’t three balls fly off slowly? This is a difficult question, but try your best to think about what you know and what might make sense.

In the haber reaction, patented by german chemist fritz haber in 1908, dinitrogen gas combines with dihydrogen gas to produce gaseous ammonia. this reaction is now the first step taken to make most of the world's fertilizer. suppose a chemical engineer studying a new catalyst for the haber reaction finds that 671 liters per second of dinitrogen are consumed when the reaction is run at 271c and 0.99atm. calculate the rate at which ammonia is being produced. give your answer in kilograms per second. round your answer to significant digits.