Chemical Reactions Problem Set

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.

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Scott Van Bramer
Department of Chemistry
Widener University
Chester, PA 19013

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Last Updated 10/1/07