The Chemistry of Compounds
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Questions and Answers

According to the law of constant proportions, which of the following statements is true?

  • The mass of the elements in a compound is always equal
  • The mass of the elements in a compound can vary depending on the source
  • Different compounds can have the same elements in different proportions
  • The ratio of elements in a compound is always the same regardless of the source (correct)

    • What is the ratio of nitrogen to hydrogen in ammonia according to the law of constant proportions?

  • 1:8
  • 3:14
  • 1:1
  • 14:3 (correct)

    • Which scientist is credited with stating the law of constant proportions?

  • Lavoisier
  • Einstein
  • Newton
  • Proust (correct)

    • What is the ratio of hydrogen to oxygen in water according to the law of constant proportions?

    <p>1:8</p> Signup and view all the answers

    What did Lavoisier and other scientists observe about compounds?

    <p>Compounds have the same elements in the same proportions</p> Signup and view all the answers

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