How many molecules are in 15 grams of oxygen gas?
a. 2.8 x 10 23 molecules of o2
b. 2.9 x1026molecules of o2
c. 2.5 x 10-24 o2
d. 9.03 x 1024 molecules of o2

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

How many moles of gas are present if p=11 atm, v=12l, t=185k?

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.