A mixture containing nitrogen, hydrogen, and iodine established the following equilibrium at 400 °C:2NH3 (g) + 3I2 (g) ⇌ N2(g) + 6HI(g) Use the information below to calculate Kc for this reaction. N2 (g) + 3H2 (g) ⇌ 2NH3 (g) Kc1 = 0.50 at 400 °CH2 (g) + I2 (g) ⇌ 2HI(g) Kc2 = 50 at 400 °C

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.