Why does changing the volume of a container change the pressure of the gas in it? Changing the volume reduces the number of molecules so they hit the walls of the container less often.

Changing the volume reduces the force with which the molecules hit the walls of the container.
Changing the volume increases the speed of the molecules so they hit the walls of the container more often.
Changing the volume increases the area that the molecules collide with so the force is spread over a larger area.

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved