Many people are against the use of nuclear power plants because of the risk of meltdown, earthquakes, and tsunamis
however, some groups still argue that nuclear power plants are worth the risk
what is a positive effect of nuclear power plants?
energy can be generated without risking the safety of plant employees,
the waste from these plants is used to produce space station materials,
the waste from these plants is safe, and its storage and disposal are simple
energy can be generated without burning fossil fuels

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:

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