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Which of the following is a valid mole ratio from the balanced equation 2Fe2O3 + 3C → 4Fe + 3CO2?

two moles of F e two O three over four moles of F e
four moles of C over three moles of F e
two moles of F e two O three over four moles of C
three moles of C over four moles of C O two

Respuesta :

SebastianH

Answer:

2 moles of Ferric Oxide ([tex]Fe_{2}O_{3}[/tex]) over 4 moles of Fe

Explanation:

Firts of all I want to explain the nomenclature that is involve in the equation:

[tex]Fe_{2}O_{3}=[/tex] Ferric Oxide

[tex]C=[/tex] Carbon

[tex]Fe=[/tex] Iron

[tex]CO_{2}=[/tex] Carbon Dioxide

Now, to understand the ratio from the balanced equation its necessary read the equation with the respective coefficients, for example:

  • 2 moles of Ferric Oxide ([tex]Fe_{2}O_{3}[/tex])  reacts to produce 4 moles of Iron ([tex]Fe=[/tex])
  • 3 moles of Carbon ([tex]C[/tex])  reacts to produce 4 moles of Iron ([tex]Fe=[/tex])
  • 2 moles of Ferric Oxide ([tex]Fe_{2}O_{3}=[/tex])  reacts to produce 3 moles of Carbon Dioxide ([tex]CO_{2}[/tex])

Each of the above could be represent as a ratio, but is always necessary keep the respective coefficient, then if you read each option only the first has the respective coefficient, it means:

2 moles of Ferric Oxide ([tex]2Fe_{2}O_{3}[/tex])  reacts to produce 4 moles of Iron ([tex]4Fe=[/tex]) or, in other words, 2 moles of Ferric Oxide ([tex]2Fe_{2}O_{3}[/tex]) over 4 moles of Iron 4 ([tex]4Fe=[/tex])

Regards!

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