Atomic Models and Theory

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Questions and Answers

Who proposed that matter is composed of tiny particles called atoms, which are indivisible and indestructible?

  • Aristotle
  • Lavoisier
  • Democritus (correct)
  • Proust

Which scientist believed that matter is made up of the four elements: Earth, Wind, Fire, and Water?

  • Aristotle (correct)
  • Proust
  • Lavoisier
  • Democritus

Who formulated the law of conservation of mass, stating that in a chemical reaction, mass is conserved?

  • Proust
  • Lavoisier (correct)
  • Aristotle
  • Democritus

Which scientist proposed the law of definite proportions, stating that the elements in a compound are always in a certain proportion by mass?

<p>Proust (C)</p> Signup and view all the answers

According to Dalton, what are compounds formed from?

<p>Atoms of different elements (B)</p> Signup and view all the answers

Which scientist proposed the idea that matter is composed of tiny particles called atoms, which are indivisible and indestructible?

<p>Democritus (C)</p> Signup and view all the answers

Who formulated the law of conservation of mass, stating that in a chemical reaction, mass is conserved?

<p>Lavoisier (D)</p> Signup and view all the answers

Who proposed the law of definite proportions, stating that the elements in a compound are always in a certain proportion by mass?

<p>Proust (B)</p> Signup and view all the answers

Who formulated the law of multiple proportions, stating that when two elements combine to form more than one compound, the ratios of the mass of one element in the first compound to its mass in the second compound can always be expressed as ratios of small whole numbers?

<p>Dalton (C)</p> Signup and view all the answers

According to Dalton, what are compounds formed from?

<p>Atoms of different elements (B)</p> Signup and view all the answers

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