Chemistry Basics Quiz
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Questions and Answers

What is an element?

  • A substance with variable composition
  • A substance consisting entirely of one type of atom (correct)
  • A substance that cannot be broken down by physical means
  • A substance consisting of different types of atoms

    • What does density measure?

  • The amount of mass in a given space (correct)
  • The weight of an object
  • The amount of matter in an object
  • The amount of space an object occupies

    • If a metal rod has a density of 3.5 g/mL, what would be the density of each half if you were to slice the rod in half?

  • 7 g/mL
  • Depends on the type of metal
  • 3.5 g/mL (correct)
  • 1.75 g/mL

    • Why can objects that are the same size have different masses?

    <p>Because their materials or substances are different</p> Signup and view all the answers

    Do two objects with the same mass always have the same volume?

    <p>No, the volume is not related to mass</p> Signup and view all the answers

    What is the purpose of the scientific method?

    <p>To solve problems</p> Signup and view all the answers

    What is the term for the rise in water levels when an object is placed into a container of water?

    <p>Water displacement</p> Signup and view all the answers

    What is qualitative information?

    <p>Information that describes color, odor, shape, or physical appearance</p> Signup and view all the answers

    What is quantitative information?

    <p>Numerical information</p> Signup and view all the answers

    What is the purpose of a graduated cylinder in science?

    <p>To find the volume of liquids</p> Signup and view all the answers

    What is the meniscus in a graduated cylinder?

    <p>The curve at the surface of the liquid</p> Signup and view all the answers

    Why do scientists use the metric system?

    <p>Because almost all countries use it</p> Signup and view all the answers

    What is the primary focus of chemistry?

    <p>The study of matter</p> Signup and view all the answers

    What is a pure substance?

    <p>A substance where all of the particles are identical</p> Signup and view all the answers

    Which of the following is NOT a state of matter?

    <p>Vacuum</p> Signup and view all the answers

    What are atoms?

    <p>The smallest unit of an element that retains its chemical properties</p> Signup and view all the answers

    What does the nucleus of an atom contain?

    <p>Protons and neutrons</p> Signup and view all the answers

    What determines the chemical properties of an atom?

    <p>The arrangement and number of subatomic particles</p> Signup and view all the answers

    What is a molecule?

    <p>A chemical structure consisting of at least two atoms bonded together</p> Signup and view all the answers

    What is the chemical formula for a molecule of water?

    <p>H2O</p> Signup and view all the answers

    How are molecules held together?

    <p>By chemical bonds</p> Signup and view all the answers

    What type of matter is a mixture?

    <p>A substance with different types of particles present</p> Signup and view all the answers

    Which particles orbit around the nucleus of an atom?

    <p>Electrons</p> Signup and view all the answers

    Which of the following is a molecule of oxygen?

    <p>O2</p> Signup and view all the answers

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