CHM 1040: Final Review

  1. Chemical equations..

    (B) describe chemical reactions
  2. The complete combustion of which of the following substances produces carbon dioxide and water?

    (C) C4H10
  3. Which of the following is evidence for a chemical reaction?

    (E) all of the above
  4. Classify the following reaction:
    (NH4)2Cr2O7-> NH3 + H2O + Cr2O3

    (A) decomposition
  5. Spectator ions are..

    (B) the ions that do not undergo any change during a reaction
  6. In a chemical reaction an atom of sulfur gains 2 electrons to become

    (E) an anion
  7. Which of the following is NOT correct regarding the reactants of a chemical reaction?

    (D) The mass of the products is usually a little than the mass of the reactants.
  8. Compounds containing only 2 chemical elements are called

    (A) binary compounds
  9. Because atoms are so ______, the standard units of mass are not useful in measurements.

    (A) small
  10. Choose the false statements.

    (D) 1 mol = 6.022 x 1023 amu
  11. The empirical formula for acetic acid is CH2O. Its molar mass is 60g/mol. The molecular formula is

    (B) C2H4O2
  12. The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law?

    (A) Law of Constant Composition
  13. Which of the following is a molecular compound?

    (D) nitrogen monoxide
  14. What metric prefix is used to designate 1/1000?

    (D) milli
  15. Cesium melts at 302 K and boils at 944 K. Whatr is the physical state of cesium at 25 degree celsius?

    (C) solid
Card Set
CHM 1040: Final Review
CHM 1040: Final Review