Which is a balanced equation for this reaction? a. fe + h2so4? fe2(so4)3 + h2 b. 2fe + h2so4? fe2(so4)3 + h2 c. fe + 3h2so4? fe2(so4)3 + 3h2 d. 2fe + 3h2so4? fe2(so4)3 + 3h2

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.