Che 1000 Practice Test 2

OCC AH Chemistry

If you have any questions or concerns about this quiz,
please contact the creator of the quiz.

To answer the questions below click on the button which represents the correct response or enter a short answer. Then click "submit" to send your answers. Sorry, subscripts and superscripts are not available. When you enter a numerical answer, do not enter letters (like g, grams, mol etc).

  1. The difference between 92-U-235 and 92-U-238 is:

    2. Your answer:
    U-238 contains three more electrons than U-235.
    U-238 contains three more protons than U-235.
    U-238 contains three more neutrons than U-235.
    U-238 has a higher atomic number than U-235.

  2. Which of the following factors doesn't affect the magnitude of a substance's potential energy?

    3. Your answer:
    The substance's mass.
    The substance's composition.
    The strength of the gravitational force operating on a substance.
    The height of the substance above its final resting plane.

  3. The amount of energy required to raise 1 gram of water 1°C, from 14.5°C to 15.5°C, is known as:

    4. Your answer:
    the calorie.
    the kilocalorie.
    the joule.
    the kilojoule.

  4. If an atom structure contains more protons than electrons it's called a(an):

    5. Your answer:
    anion.
    cation.
    isotope.
    compound.

  5. Each atom of the element 17-Cl-35 contains:

    6. Your answer:
    17 protons, 18 electrons and 17 neutrons.
    17 electrons, 17 neutrons and 18 protons.
    17 electrons, 17 protons and 18 neutrons.
    16 neutrons, 19 protons and 17 electrons.

  6. The atomic mass is:

    7. Your answer:
    the sum of an atom's protons and electrons.
    the number of protons an atom contains.
    the sum of an atom's neutrons and electrons.
    the sum of an atom's protons and neutrons.

  7. The atomic masses of elements are tabulated by using what isotope as a reference value?

    8. Your answer:
    6-C-12
    6-C-13
    6-C-14
    none of the above

  8. Ionic compounds differ from molecular compounds in that:

    9. Your answer:
    ionic compounds possess a net electrical charge.
    ionic compounds dissolve in water and enable the resulting solution to conduct electricity.
    ionic compounds always melt at a higher temperature than molecular compounds.
    ionic compounds always are a darker color than molecular compounds.

  9. In the compound Al203, the respective electrical charges on the atomic species are:

    10. Your answer:
    Al3+,O3-
    Al2+,O2-
    Al2+,O3-
    Al3+,O2-

  10. In the mineral calcite, CaCO3, the carbonate anion possesses an electrical charge of:

    11. Your answer:
    2-
    3-
    4-
    zero

  11. How many joules of energy are required to raise the temperature of 50.Og of ice from - 20°C to 0°C? Remember, the specific heat of ice is 0.492 cal/g°C. Use non-scientific notation to express your answer.

    12. Your answer:

  12. A 500.0 g iron bar at 310°C is placed in 3.OL of water at 20.0°C. What will be the change in temperature of the water? Assume no heat is lost to the surroundings and that the specific heat of water and iron are 1.00 cal/g°C and 0.113 cal/g°C, respectively. Use non-scientific notation to express your answer.

    13. Your answer:

  13. Ten grams of anthracite coal when burned release 70000. calories. How many kilojoules (kJ) is this? Remember: 1 calorie equals 4.184 joules. Use non-scientific notation to express your answer.

    14. Your answer:

  14. Homogenized milk contains 3.3% butterfat by volume. The density of buttermilk is 1.1 g/mL. How many grams of bufterfat are in this glass ofmilk? Hint: first you must find the number of mL of butterfat. Use non-scientific notation to express your answer.

    15. Your answer:

  15. Classify milk souring as chemical (c) or physical (p) change.

    16. Your answer:

  16. Classify ice melting as chemical (c) or physical (p) change.

    17. Your answer:

  17. Classify bending copper wire as chemical (c) or physical (p) change.

    18. Your answer:

  18. Classify silver tarnishing as chemical (c) or physical (p) change.

    19. Your answer:

  19. Classify sugar (a molecular compound) dropped into water as chemical (c) or physical (p) change.

    20. Your answer:

  20. Classify evaporation of water as chemical (c) or physical (p) change.

    21. Your answer:

  21. Give the IUPAC Stock name for SnF2. Be sure to use Roman numerals to specify the electrical charge of the metal ion in the name. Spelling must be correct. Place a space between words.

    22. Your answer:

  22. Give the IUPAC Stock name for CuCl2. Be sure to use Roman numerals to specify the electrical charge of the metal ion in the name. Spelling must be correct. Place a space between words.

    23. Your answer:

  23. Give the IUPAC Stock name for Fe2O3. Be sure to use Roman numerals to specify the electrical charge of the metal ion in the name. Spelling must be correct. Place a space between words.

    24. Your answer:

  24. Give the IUPAC Stock name for Ti2O3. Be sure to use Roman numerals to specify the electrical charge of the metal ion in the name. Spelling must be correct. Place a space between words.

    25. Your answer:

  25. Give the IUPAC Stock name for CuS. Be sure to use Roman numerals to specify the electrical charge of the metal ion in the name. Spelling must be correct. Place a space between words.

    26. Your answer:

  26. Give the IUPAC Stock name for PbO. Be sure to use Roman numerals to specify the electrical charge of the metal ion in the name. Spelling must be correct. Place a space between words.

    27. Your answer:

  27. Using the correct electrical charges (oxidation numbers) give the formula of sodium chloride.

    28. Your answer:

  28. Using the correct electrical charges (oxidation numbers) give the formula of lithium fluoride.

    29. Your answer:

  29. Using the correct electrical charges (oxidation numbers) give the formula of magnesium oxide.

    30. Your answer:

  30. Using the correct electrical charges (oxidation numbers) give the formula of calcium bromide.

    31. Your answer:

  31. Using the correct electrical charges (oxidation numbers) give the formula of strontium nitride.

    32. Your answer:

  32. Using the correct electrical charges (oxidation numbers) give the formula of hypothetical A2+ and B3-.

    33. Your answer:

  33. Name HCl dissolved in water. Spelling must be correct. Remember that C, O, Cl, S, N and I are nonmetals.

    34. Your answer:

  34. Name CO. Spelling must be correct. Remember that C, O, Cl, S, N and I are nonmetals.

    35. Your answer:

  35. Name CCl4. Spelling must be correct. Remember that C, O, Cl, S, N and I are nonmetals.

    36. Your answer:

  36. Name Na2S. Spelling must be correct. Remember that C, O, Cl, S, N and I are nonmetals.

    37. Your answer:

  37. Name AgI. Spelling must be correct. Remember that C, O, Cl, S, N and I are nonmetals.

    38. Your answer:

  38. Name N2O. Spelling must be correct. Remember that C, O, Cl, S, N and I are nonmetals.

    39. Your answer:

QuizCenter © 2000 - 2002. This quiz was generated at Quiz Center on DiscoverySchool.com. All rights reserved.