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Chemistry Unit 1 Review

Quiz by Helen B Yan

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31 questions
Show answers
  • Q1
    The follow image could represent....
    Question Image
    a compound
    a mixture of elements
    a mixture of compounds
    an element
    300s
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    Delete
  • Q2
    An element contains only one type of ________________________.
    Mixture
    Compound
    Atom
    300s
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    Delete
  • Q3
    We can use this word to describe anything with a chemical formula
    Solid
    Gas
    Liquid
    Chemical
    300s
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    Delete
  • Q4
    We can use this word to describe any material we use in chemistry
    Compound
    Substance
    Molecule
    Element
    300s
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    Delete
  • Q5
    This picture represents.....
    Question Image
    An element
    A compound
    A mixture of elements
    A mixture of compounds
    300s
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    Delete
  • Q6
    In this picture, each molecule contains....
    Question Image
    1 atom
    3 atoms
    4 atoms
    2 atoms
    300s
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  • Q7
    In this sentence, we could replace the word "substance" with....
    Question Image
    chemical
    element
    compound
    300s
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    Delete
  • Q8
    What is the best word to fill in the blank?
    Question Image
    particles
    elements
    materials
    300s
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    Delete
  • Q9
    In this picture, we would call each group of 2 circles a.....
    Question Image
    atom
    molecule
    element
    300s
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  • Q10
    In this picture, the black lines between the circles represent....
    Question Image
    elements
    bonds
    atoms
    molecules
    300s
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  • Q11
    In this picture, each individual circle represents....
    Question Image
    a molecule
    an atom
    a bond
    300s
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    Delete
  • Q12
    What is the best word to fill in the blank?
    Question Image
    materials
    particles
    elements
    300s
    Edit
    Delete
  • Q13
    The following image could represent....
    Question Image
    a mixture of elements
    a compound
    a mixture of compounds
    an element
    300s
    Edit
    Delete
  • Q14
    A mixture where the substance does NOT appear even throughout is...
    homogeneous
    heterogeneous
    compound
    pure
    300s
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  • Q15
    What type of matter is baking soda: NaHCO3 ?
    compound
    heterogeneous mixture
    element
    homogeneous mixture
    300s
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  • Q16
    What type of matter is pure water (H2O) ?
    pure substance
    homogeneous mixture
    heterogeneous mixture
    element
    300s
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  • Q17
    In distillation, substances can be separated because....
    Question Image
    they are different sizes
    they boil at different temperatures
    some are magnetic and some are not
    300s
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  • Q18
    In filtration, we separate substances based on the fact that.....
    Question Image
    some dissolve in water and some do not
    they are different sizes
    they boil at different temperatures
    300s
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  • Q19
    In a distillation apparatus, what happens in the condenser?
    Question Image
    Water passes through filter paper and solid particles are left behind
    Water boils and leaves impurities behind
    Pure water vapor is cooled and turns from gas back into a liquid
    300s
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  • Q20
    When methane (CH4) is burned, it combines with oxygen (O2) from the air to create carbon dioxide (CO2) and water (H2O). This process is....
    a chemical reaction
    a physical change
    300s
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