Rec2_f04 - Recitation Activity 2 (Chem 121) Chemical...

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Recitation Activity 2 (Chem 121) Chapter 3 Chemical Reactions and Balanced Equations 1. Write a balanced chemical equation for each of the following reactions. a. SO 2 (g) + O 2 (g) SO 3 (g) b. C 3 H 8 (g) + O 2 (g) CO 2 (g) + H 2 O(g) c. Aqueous solutions of Chromium (III) sulfate and ammonium carbonate react to form a chromium (III) carbonate precipitate and aqueous ammonium sulfate. 2. Consider the picture below which illustrate s the reaction between fluorine (F 2 ) and chlorine (Cl 2 ), where the black spheres represent chlorine atoms and the grey sphere represent fluorine atoms. REACTANTS PRODUCTS a. Write a balanced chemical equation for this reaction. b. The reactant that runs out first limits the amount of product that can be formed. In chemistry we call this the limiting reactant. Which reactant is the limiting reactant? 3. Perhaps you know that water has the unusual property that when it freezes (transforming from liquid water to ice) it expands. This is why ice floats on the top of a lake when it freezes over,
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Rec2_f04 - Recitation Activity 2 (Chem 121) Chemical...

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