:a stock bottle of an acid reads: 56% by mass and 1.25 specific gravity. if themolar mass of the acid is 70g, find the mole per cubic decimeter.

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.

H tricky one let me think and get back to u

Naoh + hbr -> nabr (salt) + h2o ca (oh)2 + 2hbr - - - > ca (br)2 + 2h2o