Law of Conservation of Matter and Subatomic Particles Quiz
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Questions and Answers

What principle states that whatever you start with in a chemical reaction or change of state, you must end with?

  • Law of Constant Mass
  • Law of Variable Composition
  • Law of Conservation of Energy
  • Law of Conservation of Matter/Mass (correct)

    • What do rows represent in the periodic table and in which direction do they go?

  • They represent groups and go vertically
  • They represent periods and go vertically (correct)
  • They represent periods and go horizontally
  • They represent groups and go horizontally

    • What subatomic particle lets us know which atom a Bohr model represents?

  • Electron
  • Proton (correct)
  • Neutron
  • Nucleus

    • What happens to the mass of an object if it is burned?

    <p>Mass remains the same</p> Signup and view all the answers

    What do groups represent in the periodic table and in which direction do they go?

    <p>They represent groups and go horizontally</p> Signup and view all the answers

    What is the charge of an electron and where is it located in an atom?

    <p>-1, electron cloud</p> Signup and view all the answers

    What principle states that whatever you start with in a chemical reaction or change of state, you must end with?

    <p>Law of Conservation of Matter/Mass</p> Signup and view all the answers

    What is the significance of a chemical equation being balanced?

    <p>It shows equal numbers of atoms for each element on both sides.</p> Signup and view all the answers

    Does changing the shape of an object affect its mass?

    <p>No, mass remains the same</p> Signup and view all the answers

    What are subatomic particles that make up an atom called?

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

    How do you know when a new element starts on the periodic table?

    <p>By a change in atomic number</p> Signup and view all the answers

    What do groups represent on the periodic table and in which direction do they go?

    <p>Columns with similar chemical properties going vertically</p> Signup and view all the answers

    What are reactants in a chemical equation?

    <p>Substances present at the start of a chemical reaction</p> Signup and view all the answers

    What happens to the mass of an object if it is torn apart?

    <p>Mass remains constant because it is a physical change</p> Signup and view all the answers

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