Science Finals (PS 1) Ch. 3 Test

  1. Which of the following groups represent 4 classes of matter, as they are classified according to their makeup?

    D) elements compounds, mixtures, solutions
  2. Substances form a mixture when they are

    B) physically combined
  3. A compound is a pure substance because it

    A) is one kind of material with definite properties
  4. An example of a pure substance is

    C) gold
  5. The simplest type of pure substance is

    C) an element
  6. Atom is to element as molecule is to

    B) compound
  7. Which of the following lists is arranged from the least complex to the most complex calss of matter?

    C) element, compound, mixture
  8. The largest particles can be found in

    A) a heterogeneous mixture
  9. An example of a homogeneous mixture is

    A) salt water
  10. An example of a heterogeneous mixture is

    B) Italian salad dressing
  11. The building blocks of matter are

    C) atoms
  12. An alloy is a

    A) solution of metals
  13. A glass of pure water is all of the following EXCEPT

    D) an element
  14. Compounds are

    C) made of more than one element chemically combined
  15. All of the following are physical properties EXCEPT

    B) ability to burn
  16. A shorthand way of representing an element is by

    A) writing a chemical symbol
  17. Oxygen, represented as O2, is

    B) a molecule of oxygen
  18. The number that tells how many atoms of an element are in a compound is called a

    B) subscript number
  19. One molecule of H2SO4 contains

    A) 2 hydrogen atoms, 1 sulfur atom, 4 oxygen atoms
  20. The description of a chemical reaction using symbols and formulas is called a

    C) chemical equation
  21. Which of the following is properly balanced?

    C) H2 + Cl2 --> 2HCl
  22. A mixture of oil and water can best be separated by considering the property of

    C) density
  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

    C) coefficient
  24. Using activated charcoal to remove red food coloring or other impurities dissolved in water is an example of

    D) a physical process used to separate a homogeneous mixture
  25. Heterogeneous mixtures can be physically separated easily compared to solutions because

    B) the particles of a solution are much smaller than those in a heterogeneous mixture
  26. Which of the following statements is true when an element has a two letter symbol?

    A) The first letter is upper case and the second is lower case.
  27. The relative proportions of substances can NOT vary in

    B) a compound
  28. Compounds are represented by

    A) a chemical formula
  29. Compounds are different from mixtures in that

    A) compounds are chemically combined and mixtures are not
  30. There are _________ naturally occurring elements.
  31. When making lemonade using a powder mix, the water is the ________, substance doing the dissolving.
  32. When making lemonade using a powder mix, the lemonade powder mix is the _______, substance being dissolved.
  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
Card Set
Science Finals (PS 1) Ch. 3 Test
Science Finals (PS 1) Ch. 3 Test