How many moles of O 2 react with 3.600 mol of Cu 2O in the following reaction? 2 Cu2O(s) + O2(g) → 4 CuO(s)

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 d for this question

Yes, well how much of all chemistry is to do with numbers? a lot! so being good at mathematics makes a huge aspect of chemistry so much easier but if you aren't mathematical then you can work at it and become reasonably proficient at it.hope i ~