The Chemistry of Compound Composition
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Questions and Answers

What did Lavoisier and other scientists note about compounds?

  • Compounds are composed of two or more elements in varying proportions
  • Compounds are composed of a single element in fixed proportions
  • Compounds are composed of a single element in varying proportions
  • Compounds are composed of two or more elements in fixed proportions (correct)

    • What is the ratio of the mass of hydrogen to the mass of oxygen in water?

  • 1:8 (correct)
  • 5:3
  • 2:1
  • 3:7

    • What is the ratio of nitrogen to hydrogen in ammonia?

  • 14:3 (correct)
  • 2:1
  • 3:14
  • 7:3

    • What is the law of constant proportions also known as?

    <p>The law of definite proportions</p> Signup and view all the answers

    Who provided the basic theory about the nature of compounds and their proportions?

    <p>John Dalton</p> Signup and view all the answers

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