495 cm of oxygen gas аnd
877cm of nitrogen a, both
at 25.0 C and 114.7 kPa, are
injected into an evacuated
536 cm flask Find the total
pressure in the flask, assuming the temperature Remains constant.

Name the element in group 17, period 2. (periodic table)

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =