ACTIVIDAD 1: Balancear las siguientes ecuaciones por MÉTODO DE TANTEO a) Cr2O3 + Al → Al2O3 + Cr

b) FeS2 → Fe3S4 + S2

c) C6H12O6 + O2 → CO2 + H2O

ACTIVIDAD 2: Balancear las siguientes ecuaciones por MÉTODO ALGEBRAICO.

HCl + Al(OH)3 → AlCl3 + H2O

FeS2 + O2 → Fe2O3 + SO2

c) Al + HCl → AlCl3 + H2

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:

i dont know

explanation:

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.