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Chemical Reactions

Quiz by Chris Rafalik

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5 questions
Show answers
  • Q1
    Which of the following substances is an organic compound?
    Question Image
    Ammonium sulfide - (NH4)2S
    Urea - CH4N2O
    Sodium chloride - NaCl
    Silane - SiH4
    30s
  • Q2
    All of the following are correctly balanced EXCEPT -
    Question Image
    H
    G
    F
    J
    30s
  • Q3
    Which of these formulas contain equal numbers of nitrogen atoms?
    Question Image
    Formulas I and IV
    Formulas I and III
    Forumlas II and III
    Formulas I, II, and V
    30s
  • Q4
    Which information could a student determine from only the chemical formula of a protein?
    The number of atoms of each element in the protein
    The number of molecules in each sequence that makes up a protein
    The physical arrangement of atoms in the structure of the protein
    The color of the protein
    30s
  • Q5
    What most likely happened to produce these results?
    Question Image
    One of the original compounds came out of solution
    Rapid evaporation of water occurred, leaving a solid
    The solutions reacted chemically
    Some of the water froze into ice crystals
    30s

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