Given the following chemical reaction: 2 o2 + ch4 --> co2 + 2 h2o
what mass of oxygen is required to completely react with 2 moles of ch4?
a)77 grams o2
b) 98 grams o2
c) 128 grams o2
d) 144 grams o2

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.

The answer is bhope this