Science Finals (PS 1) Ch. 3 Test

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eatenbread
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24439
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Science Finals (PS 1) Ch. 3 Test
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2010-06-21 19:37:23
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Science Finals PS Test
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Science Finals (PS 1) Ch. 3 Test
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  1. Which of the following groups represent 4 classes of matter, as they are classified according to their makeup?
    A) metals, nonmetals, gases, radioactive
    B) elements, compounds, liquids, solutions
    C) elements compounds, mixtures, solutions
    D) solids, liquids, gases plasma
    C) elements compounds, mixtures, solutions
    (this multiple choice question has been scrambled)
  2. Substances form a mixture when they are
    A) chemically combined
    B) physically combined
    C) combined in definite proportions
    D) a result of a chemical reaction
    B) physically combined
    (this multiple choice question has been scrambled)
  3. A compound is a pure substance because it
    A) behaves like the substances it is made of
    B) is physically combined
    C) is made with chemicals
    D) is one kind of material with definite properties
    D) is one kind of material with definite properties
    (this multiple choice question has been scrambled)
  4. An example of a pure substance is
    A) blood
    B) ocean water
    C) milk
    D) gold
    D) gold
    (this multiple choice question has been scrambled)
  5. The simplest type of pure substance is
    A) a solution
    B) an element
    C) a compound
    D) a mixture
    B) an element
    (this multiple choice question has been scrambled)
  6. Atom is to element as molecule is to
    A) mixture
    B) suspension
    C) solution
    D) compound
    D) compound
    (this multiple choice question has been scrambled)
  7. Which of the following lists is arranged from the least complex to the most complex calss of matter?
    A) mixture, compound, element
    B) element, compound, mixture
    C) compound, mixture, element
    D) element, mixture, compound
    B) element, compound, mixture
    (this multiple choice question has been scrambled)
  8. The largest particles can be found in
    A) an element
    B) a heterogeneous mixture
    C) a homogeneous mixture
    D) a solution
    B) a heterogeneous mixture
    (this multiple choice question has been scrambled)
  9. An example of a homogeneous mixture is
    A) soil
    B) chocolate chip ice cream
    C) salt water
    D) sugar and salt mixture
    C) salt water
    (this multiple choice question has been scrambled)
  10. An example of a heterogeneous mixture is
    A) Italian salad dressing
    B) milk
    C) water
    D) sugar water solution
    A) Italian salad dressing
    (this multiple choice question has been scrambled)
  11. The building blocks of matter are
    A) atoms
    B) compounds
    C) cells
    D) elements
    A) atoms
    (this multiple choice question has been scrambled)
  12. An alloy is a
    A) solution of metals
    B) heterogeneous mixture
    C) solution of gases
    D) compound
    A) solution of metals
    (this multiple choice question has been scrambled)
  13. A glass of pure water is all of the following EXCEPT
    A) an element
    B) a pure substance
    C) a homogeneous substance
    D) a compound
    A) an element
    (this multiple choice question has been scrambled)
  14. Compounds are
    A) substances that can not be broken down
    B) made of only one kind of element
    C) made of more than one element physically combined
    D) made of more than one element chemically combined
    D) made of more than one element chemically combined
    (this multiple choice question has been scrambled)
  15. All of the following are physical properties EXCEPT
    A) ability to burn
    B) solubility
    C) boiling point
    D) density
    A) ability to burn
    (this multiple choice question has been scrambled)
  16. A shorthand way of representing an element is by
    A) writing a coefficient
    B) writing a chemical symbol
    C) writing a subscript number
    D) writing a chemical equation
    B) writing a chemical symbol
    (this multiple choice question has been scrambled)
  17. Oxygen, represented as O2, is
    A) the chemical symbol for oxygen
    B) a compound
    C) a molecule of oxygen
    D) 2 molecule of oxygen
    C) a molecule of oxygen
    (this multiple choice question has been scrambled)
  18. The number that tells how many atoms of an element are in a compound is called a
    A) coefficient
    B) formula number
    C) parenthesis
    D) subscript number
    D) subscript number
    (this multiple choice question has been scrambled)
  19. One molecule of H2SO4 contains
    A) 2 hydrogen atoms, 1 sulfur atom, 6 oxygen atoms
    B) 2 hydrogen atoms, 1 sulfur atom, 4 oxygen atoms
    C) 2 hydrogen atoms, 4 sulfur atoms, 4 oxygen atoms
    D) 1 hydrogen atom, 2 sulfur atoms, 6 oxygen atoms
    B) 2 hydrogen atoms, 1 sulfur atom, 4 oxygen atoms
    (this multiple choice question has been scrambled)
  20. The description of a chemical reaction using symbols and formulas is called a
    A) physical change
    B) chemical equation
    C) chemical property
    D) chemical change
    B) chemical equation
    (this multiple choice question has been scrambled)
  21. Which of the following is properly balanced?
    A) H2 + Cl2 --> 2HCl
    B) H2 + O2 --> H2O
    C) HCl --> H2 + Cl2
    D) Na + Cl2 --> 4NaCl
    A) H2 + Cl2 --> 2HCl
    (this multiple choice question has been scrambled)
  22. A mixture of oil and water can best be separated by considering the property of
    A) particle size
    B) density
    C) color
    D) melting point
    B) density
    (this multiple choice question has been scrambled)
  23. An equation is balanced, by placing the appropriate number in front of a chemical symbol or formula. This number would change the number of molecules. It is called a
    A) coefficient
    B) formula number
    C) subscript number
    D) parenthesis
    A) coefficient
    (this multiple choice question has been scrambled)
  24. Using activated charcoal to remove red food coloring or other impurities dissolved in water is an example of
    A) a physical process used to separate a heterogeneous mixture
    B) a chemical process used to separate a compound
    C) a physical process used to separate a homogeneous mixture
    D) a chemical process used to separate a homogeneous mixture
    C) a physical process used to separate a homogeneous mixture
    (this multiple choice question has been scrambled)
  25. Heterogeneous mixtures can be physically separated easily compared to solutions because
    A) the particles of a solution are much larger than those in a heterogeneous mixture
    B) the particles of a solution are not evenly spread throughout
    C) the particles of a solution are much smaller than those in a heterogeneous mixture
    D) the particles of a solution are not as well mixed as those of a heterogeneous mixture
    C) the particles of a solution are much smaller than those in a heterogeneous mixture
    (this multiple choice question has been scrambled)
  26. Which of the following statements is true when an element has a two letter symbol?
    A) Both letters are lower case.
    B) Both letters are upper case.
    C) The first letter is upper case and the second is lower case.
    D) The first letter is lower case and the second is upper case.
    C) The first letter is upper case and the second is lower case.
    (this multiple choice question has been scrambled)
  27. The relative proportions of substances can NOT vary in
    A) a homogeneous mixture
    B) a heterogeneous mixture
    C) a compound
    D) a solution
    C) a compound
    (this multiple choice question has been scrambled)
  28. Compounds are represented by
    A) a chemical formula
    B) any system you choose
    C) a chemical symbol
    D) a chemical equation
    A) a chemical formula
    (this multiple choice question has been scrambled)
  29. Compounds are different from mixtures in that
    A) compounds have many components and mixture have just one
    B) mixtures have many components and compounds have only two
    C) mixtures are chemically combined
    D) compounds are chemically combined and mixtures are not
    D) compounds are chemically combined and mixtures are not
    (this multiple choice question has been scrambled)
  30. There are _________ naturally occurring elements.
    92
  31. When making lemonade using a powder mix, the water is the ________, substance doing the dissolving.
    solvent
  32. When making lemonade using a powder mix, the lemonade powder mix is the _______, substance being dissolved.
    solute
  33. The shorthand representation for many elements on the periodic table does not seem to match the element's name. This is because the shorthand representation often comes from the _____ language
    Latin

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