Chemistry Fundamentals and Engineering Applications Quiz
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Questions and Answers

Which of the following is NOT one of the topics covered in Chem 15 course outline?

  • Determining changes that matter undergoes
  • Predicting the po (correct)
  • Identifying the numbers of protons, electrons, and neutrons in a particular isotope
  • Calculating the formula weight and molecular weight

    • Which of the following is the correct formula to calculate the number of moles?

  • Moles = Mass - Molar mass
  • Moles = Mass x Molar mass
  • Moles = Mass / Molar mass (correct)
  • Moles = Mass + Molar mass

    • Which of the following is the correct definition of an atom?

  • The smallest unit of an element that retains its chemical properties (correct)
  • A substance that exists in a gaseous state at room temperature
  • A substance that cannot be broken down into simpler substances by chemical means
  • A substance made up of two or more different elements chemically bonded together

    • Which of the following is the correct definition of a compound?

    <p>A substance made up of two or more different elements chemically bonded together</p> Signup and view all the answers

    Which of the following is the correct definition of an isotope?

    <p>An atom of an element with a different number of neutrons</p> Signup and view all the answers

    Which of the following is the correct definition of a compound?

    <p>A compound is a substance made up of two or more different elements chemically bonded together.</p> Signup and view all the answers

    Which of the following is the correct definition of an isotope?

    <p>An isotope is an atom that has a different number of protons than electrons.</p> Signup and view all the answers

    Which of the following is the correct definition of an atom?

    <p>An atom is the smallest unit of matter that retains the chemical properties of an element.</p> Signup and view all the answers

    Which of the following is NOT one of the topics covered in Chem 15 course outline?

    <p>Writing balanced chemical equations for simple reactions</p> Signup and view all the answers

    Which of the following is the correct formula to calculate the number of moles?

    <p>Number of moles = Mass of substance / Molar mass of substance</p> Signup and view all the answers

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