The right answer is noble gases.
The noble gases, or rare gases, are the chemical elements of group 18 (formerly "group VIIIA" or even "group 0") of the periodic table. These are helium He, neon 10Ne, argon 18Ar, krypton 36Kr, xenon 54Xe and radon 86Rn, the latter being radioactive.
This property means that they can not bind with other atoms to form molecules or lose electrons to transform into ions, hence their name noble or inert gases (they are not very active and do not do not mix). In nature, all elements "want" to become stable.
Balanced Equation: 2Mg + O2 ➡️ 2MgO
125 x 2= 250 102 x 2= 204
250 + 204= 454
So the answer should be 454 grams of magnesium oxide should be produced.
It would be a whale cause they have the highest density
10000 gallons= 37.85 cubic feet
44 amu because oxygen has an atomic weight of 16, and 16 plus 16 is equal to 32, and the atomic mass of carbon is 12, and 32 plus 12 is 44.