B) Clasifica las siguientes reacciones químicas apareando con el número que le corresponda. 1- Síntesis NaOH + HCL → NaCL + H2O
2-Descomposición AgNO3 + KCL → KNO3 +AgCL 3- Doble descomposición 2Na +CL → 2NaCL
4- Desplazamiento FEO2 → FE + O2
5- Doble desplazamiento AgNO3 + HCL → AgCL + HNO3
6-Neutralizacion Mg + CuSo4 → MgSo4

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: