A 10.7 g sample of PCl5 is added to a sealed 1.75 L flask and the reaction is allowed to come to equilibrium at a constant temperature. At equilibrium, 47.4% of the PCl5 remains. What is the equilibrium constant, c , for the reaction?

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above