Chemistry: Atoms, Elements, and Compounds
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Questions and Answers

Which of the following is a characteristic of a liquid?

  • Compressible
  • Least density
  • Fixed volume (correct)
  • No fixed shape

In the compound CO2, what are the elements present?

  • Carbon and Sulfur
  • Carbon and Oxygen (correct)
  • Carbon and Nitrogen
  • Carbon and Hydrogen

Which of the following is NOT a characteristic of a gas?

  • Takes the shape of its container
  • Compressible
  • Least density
  • Fixed volume (correct)

What is the building block of matter according to the text?

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

What type of mixture is oil and water?

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

What is the characteristic of elements that distinguishes them from compounds?

<p>Being made of the same kind of atoms (A)</p> Signup and view all the answers

Who is credited with isolating organic acids and chlorine?

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

Which scientist is associated with the Atomic model and the Periodic table?

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

What is Chemistry defined as in the simplest way?

<p>The study of matter and its changes (D)</p> Signup and view all the answers

'Anything that has mass and takes up space' is a definition of what term?

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

Who is known for X-raying DNA?

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

'Anesthetics' and 'surgery' are associated with which historical figure?

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

Who among the following is credited with the early development of the atomic theory?

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

Which scientist isolated several gases, including O2?

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

What was Robert Boyle's contribution to the study of gases?

<p>Isolated several gases, like O2 (D)</p> Signup and view all the answers

Which scientist was known for contributions in the field of classification, extraction, and pharmacy?

<p>Jaber Ibn Haiyan (B)</p> Signup and view all the answers

What was one of the key messages from the chemistry lecture regarding applications of chemistry?

<p>&quot;Chemistry is a practical, experimental science with applications in every aspect of life&quot; (D)</p> Signup and view all the answers

Which philosopher is associated with work in classification and atomic theory?

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