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Physical vs Chemical Changes
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Physical vs Chemical Changes

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Questions and Answers

Which of the following best describes physical changes?

  • Changes that involve the release or absorption of energy
  • Changes that alter the chemical composition of a substance
  • Changes that only affect the appearance or form of a substance (correct)
  • Changes that occur when a substance reacts with another substance
  • Which of the following best describes chemical changes?

  • Changes that involve the release or absorption of energy
  • Changes that only affect the appearance or form of a substance
  • Changes that occur when a substance reacts with another substance
  • Changes that alter the chemical composition of a substance (correct)
  • Which of the following is an example of a physical change?

  • Melting ice (correct)
  • Rusting of iron
  • Burning wood
  • Cooking an egg
  • ¿Cuál de las siguientes opciones describe mejor un cambio físico?

    <p>La alteración de la forma o el tamaño de un objeto</p> Signup and view all the answers

    ¿Cuál de las siguientes opciones es un ejemplo de cambio químico?

    <p>La oxidación del hierro</p> Signup and view all the answers

    ¿Cuál de las siguientes opciones describe mejor un cambio químico?

    <p>El cambio de color de una sustancia</p> Signup and view all the answers

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