Yep, for example "COKE" atoms of sugar, and other stuff combined to make a delicious drink.
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1. <span>EACH ORBITS HOLDS A FIXED NUMBER OF ELECTRONS </span>
Answer:

Explanation:
I am assuming you are saying what is the final volume of the gas
Known :
Initial volume (V1) = V
Initial temperature (T1) = T
Final temperature (T2) = 5/4 T
Initial pressure (P1) = P
Final pressure (P2) = 2P
<u>Wanted: Final volume (V2)</u>
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NA = 6.022*10^23
number of atoms = number of moles * avogadros number
number of atoms = <span>6.022*10^23 * 1.4 moles * 4 atoms / molecules of PCl3
Number of atoms = 3.37*10^23 atoms.</span>
To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.