Chemical Reactions Problem Set

This problem set was developed by S.E. Van Bramer for Chemistry 145 at Widener University.




  1. For the following reactions: Name the reactants and products, Balance the equation, and calculate the molecular weight of the reactants and products. Starting with 2.0 grams of each reactant, identify the limiting reagent and determine the mass of the first product.
    1. Fe2O3 (s ) + CO (g) -> FeO (s) + CO2 (g)
    2. FeO (s) + CO (g) -> Fe (s) + CO2 (g)
    3. C12H22O11 (s) + O2 (g) -> CO2 (g) + H2O (g)
    4. Fe (s) + O2 (g) -> Fe2O3 (s)
    5. Ca (s) + H2O (l) -> Ca(OH)2 (aq) + H2 (g)


  2. Write a balanced equation for the following reactions.
    1. Aluminum metal is oxidized by oxygen (from the air) to form aluminum oxide.
    2. Sodium oxide reacts with carbon dioxide to form sodium carbonate.
    3. Calcium metal reacts with water to form calcium hydroxide and hydrogen gas.
    4. Potassium nitrate decomposes to form potassium nitrite and oxygen.
    5. Barium metal reacts with Iron (III) sulfate to produce barium sulfate and iron metal.
    6. Barium chloride reacts with sodium sulfate to produce barium sulfate and sodium chloride.
    7. Bismuth (III) oxide and zinc metal react to produce zinc (II) oxide and bismuth metal.
    8. Calcium metal reacts with phosphorus to produce calcium phosphide.
    9. Copper metal reacts with sulfuric acid and water to produce copper sulfate pentahydrate and sulfur dioxide.
    10. The combustion of decane.
    11. The combustion of pamoic acid (C23H16O4).
    12. A solution of hydrochloric acid reacts with a solid calcium bicarbonate to produce water, carbon dioxide, and calcium chloride.
    13. A solution of acetic acid reacts with solid iron (II) hydroxide.
    14. hydrofluoric acid reacts with sodium hydroxide.


    This page is maintained by
    Scott Van Bramer
    Department of Chemistry
    Widener University
    Chester, PA 19013

    Please send any comments, corrections, or suggestions to svanbram@science.widener.edu.

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    Last Updated 10/1/07