4 moles of sodium because you originally have 2.0 moles of Na2SO4 and you set that up at the beginning of the (what we called) train tracks. Then diagonally from that, on the bottom you put 1 mol of Na2SO4 to cancel the units. Then above that you have 2 moles of sodium because that is how many there are in the equation that they gave (the Na2 part). Then its just like a fraction, you multiply the top by the top and the bottom by the bottom, which would give you 4moles/1 or just 4 moles Na. I hope that helps
Answer: when a reaction absorbs heat or decreases the entropy of the system,
Explanation: :)
This substance is certainly not gas since gas particles have large spaces between them. This substance is certainly not solid as well since solid particles are closely packed together with very close proximity. This substance is therefore liquid since particles are still close but can move around in a disordered arrangement.
75% is the chance that they will have detached earlobes
Answer:
The partial pressure of when the valve is opened is 328.6 Torr.
Explanation:
Initial pressure of the
Initial volume of the
After opening the valve :
Final pressure or partail pressure of the
Final volume of the
( Boyle's law)
The partial pressure of when the valve is opened is 328.6 Torr.