9. At STP, how many liters of any gas are occupied by one mole?

The answer is: 22, 4 liters

Explanation:

We use the formula PV=nRT

At STP: 1 atm of pressure and 273 K of temperature.

PV=nRT

V=nRT/P =1 mol x 0,082 l atm/L mol x 273 K /1 atm

V=22, 386 l

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.