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Elements/Compounds quiz review

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  • Is C4H2 an element, an atom, a mixture, or a compound?
    compound
  • Is Mg and element or a compound?
    element
  • If each element is represented by a different color, how many atoms are in this Lego model of a compund?
    5
  • How many elements are present in the chemical formula Mg2Na4?
    2
  • If each element is represented by a different color, how many atoms are in this Lego model of a compund?
    3
  • How many atoms of oxygen are present in H2O?
    1
  • If each element is represented by a different color, how many elements are in this Lego model of a compund?
    2
  • What elements are in the chemical formula H2O?
    hydrogen & oxygen
  • What are compounds?
    A pure substance of two or more different elements that have been chemically combined.
  • How many atoms are present in the chemical formula Mg2Na4?
    6
  • How are elements and compounds different?
    An element is a single, pure substance represented by a chemical symbol. A compound is a pure substance of 2 or more different elements.
  • Is HCl an element or a compound?
    compound
  • How many atoms are present in H2S4?
    6
  • Is CuSO4 and element or a compound?
    compound
  • Is Na an element or a compound?
    element
  • If each element is represented by a different color, how many elements are in this Lego model of a compund?
    2
  • What are elements?
    A single, pure substance, represented by a chemical symbol.
  • How many atoms are present in the chemical formula H2O?
    3
  • What elements are present in the following formula? H2S4
    hydrogen & sulfur