Iwill give asap! a student adds 5 grams of baking soda to a beaker of vinegar (acetic acid) weighing 10 grams. he observes a significant amount of bubbles form as soon as the two substances are combined. after the reaction, the mass of the products remaining in the beaker is 13 g. does this reaction follow the law of conservation of matter? explain your reasoning.

law of conservation of matter states in any given system that is closed the transfer of matter in and out the amount of matter stays constant. the amount of matter in the system is conserved

the grams   of   barium that   are in   2.3 x 10^23   atoms of barium   is   52.4 g (answer c)

    calculation

mass = moles   of ba   x molar   mass of ba

  molar mass of ba from periodic table=   137.3 g/mol

  use the   avogadro's law   constant   to   calculate the moles of barium

  that   is     1 mole =   6.02   x 10^23 atoms

                    ? moles = 2.3 x 10^23   atoms

by cross   multiplication

=(1 mole   x 2.3x 10^23 atoms)   / 6.02   x10^23 atoms)=   0.382   moles

mass   is therefore = 137.3   g/mol x 0.382 mol = 52.4 ( answer c)

explanation:

increased stability in the completion of fluorine's outer shell.