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Identify the correct definition for a coefficient. The number of atoms on the reactant side of a chemical equationThe number of atoms on the product side of a chemical equationA number within a chemical formulaA number placed before a chemical formulaI'm not sure

Question

Identify the correct definition for a coefficient. The number of atoms on the reactant side of a chemical equationThe number of atoms on the product side of a chemical equationA number within a chemical formulaA number placed before a chemical formulaI'm not sure

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Solution

Para identificar la definición correcta de un coeficiente, sigamos estos pasos:

  1. Analicemos cada opción:

    • "The number of atoms on the reactant side of a chemical equation" se refiere al número de átomos en el lado de los reactivos de una ecuación química.
    • "The number of atoms on the product side of a chemical equation" se refiere al número de átomos en el lado de los productos de una ecuación química.
    • "A number within a chemical formula" se refiere a un número dentro de una fórmula química, como los subíndices que indican la cantidad de átomos de cada elemento en una molécula.
    • "A number placed before a chemical formula" se refiere a un número colocado antes de una fórmula química, que indica la cantidad de moléculas o unidades de esa sustancia.
  2. Definición de coeficiente:

    • Un coeficiente en química es un número que se coloca antes de una fórmula química en una ecuación para balancear la ecuación. Indica cuántas unidades de esa sustancia están involucradas en la reacción.
  3. Comparación con las opciones:

    • La opción "The number of atoms on the reactant side of a chemical equation" no es correcta porque se refiere a los átomos, no a los coeficientes.
    • La opción "The number of atoms on the product side of a chemical equation" tampoco es correcta por la misma razón.
    • La opción "A number within a chemical formula" no es correcta porque se refiere a los subíndices, no a los coeficientes.
    • La opción "A number placed before a chemical formula" es la correcta porque describe exactamente lo que es un coeficiente.

Por lo tanto, la definición correcta de un coeficiente es: "A number placed before a chemical formula".

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