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20 questions
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  • Q1
    Which of the following is the chemical symbol for chlorine?
    Cl
    C
    Ca
    Co
    30s
    6.5a
  • Q2
    The chemical symbol for Nitrogen is ____.
    Na
    N
    Ni
    Ne
    30s
    6.5a
  • Q3
    Which of the following correctly represents an element?
    OH
    Na
    CO
    NaCL
    30s
    6.5a
  • Q4
    Which of the following best describes a compound?
    Found on the periodic table
    2 or more elements chemically combined
    2 or more elements in a mixture
    Made of 1 element
    30s
    6.5a
  • Q5
    Which of the models represents a compound?
    Question Image
    A
    C
    B
    D
    30s
    6.5a
  • Q6
    Which of the models above represents Neon as a gas?
    Question Image
    A
    D
    C
    B
    30s
    6.5a
  • Q7
    Baking a cake is an example of a ___________________ change.
    physical
    chemical
    no changes
    biological
    30s
    6.5c
  • Q8
    Which of the following is an indicator of a chemical change?
    Production of Gas
    Change in State
    Stays the same
    Change in Size
    30s
    6.5c
  • Q9
    If someone combines two chemicals together and it starts bubbling, this is an indicator that a _______________________ has taken place.
    biological change
    chemical change
    no change
    physical change
    30s
    6.5c
  • Q10
    Two substances are mixed together. Which of the following does NOT indicate a chemical change has happened?
    gas is produced
    precipitate is formed
    temperature change
    one liquid dissolves
    30s
    6.5c
  • Q11
    Which substance in the equation is represented as an element?
    Question Image
    CO
    H2
    H2O
    C8H18
    30s
    6.5a
  • Q12
    The two substance to the right of the equation are classified as -
    Question Image
    two compounds
    one element & one compound
    two elements
    two mixtures
    30s
    6.5a
  • Q13
    Which of the following substances is a compound?
    HCO3
    H
    O2
    Na
    30s
    6.5a
  • Q14
    Compounds and elements are both __________________________________________.
    pure substances
    found on the periodic table
    made from more than one element
    formed through chemical reactions
    30s
    6.5a
  • Q15
    The symbols Na and Cl represent __________________ in NaCl.
    molecules
    elements
    compounds
    mixtures
    30s
    6.5a

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