Chapter 2 Practice Quiz

Chapter 2 Practice Quiz - Chapter 2 Practice Quiz Multiple...

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Chapter 2 Practice Quiz Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Consider the unbalanced chemical equation, F 2 + H 2 O OF 2 + HF. When the reaction is balanced with smallest integer coefficients, the coefficient for H 2 O is a. 1 b. 2 c. 3 d. 4 e. none of these ____ 2. Consider the unbalanced chemical equation, Al(OH) 3 + H 2 CO 3 Al 2 (CO 3 ) 3 + H 2 O. When the reaction is balanced with smallest integer coefficients, the coefficient for H 2 CO 3 is a. 1 b. 2 c. 3 d. 5 e. none of these ____ 3. Consider the unbalanced chemical equation, CaCO 3 + H 3 PO 4 Ca 3 (PO 4 ) 2 + CO 2 + H 2 O. When the reaction is balanced with smallest integer coefficients, the coefficient for CO 2 is a. 1 b. 3 c. 5 d. 7 e. none of these ____ 4. Consider the unbalanced chemical equation for the complete combustion of butanoic acid (C 4 H 8 O 2 ): C 4 H 8 O 2 + O 2 CO 2 + H 2 O. When the reaction is balanced using smallest integer coefficients, the coefficient for O 2 is a. 3 b. 4 c. 5 d. 6 e. none of these ____ 5. Ammonia (NH 3 ) reacts with oxygen to produce nitrogen oxide (NO) and water. If this reaction is described with a balanced chemical equation using smallest integer coefficients, the coefficient for nitrogen oxide is a. 1 b. 2 c. 3 d. 4 e. none of these ____ 6. Propene gas (C 3 H 6 ) burns completely in oxygen to produce carbon dioxide and water as the only products. If this reaction is described with a balanced chemical equation using smallest integer coefficients, the coefficient for water is a. 1 b. 3 c. 6 d. 9 e. none of these
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____ 7. The complete combustion of liquid toluene (C 7 H 8 ) in oxygen yields just carbon dioxide and water. When this reaction is balanced using smallest integer coefficients, the coefficient for water is a. 2 b. 4 c. 8 d. 12 e. none of these ____ 8. The complete combustion of liquid propyl alcohol (C 3 H 7 OH) in oxygen yields just carbon dioxide and water. When this reaction is balanced using smallest integer coefficients, the coefficient for O 2 is a. 5 b. 9 c. 10 d. 20 e. none of these ____ 9. If the reaction, K 2 O 2 ( s ) + H 2 O(l) KOH( aq ) + O 2 ( g ), is balanced using smallest integer coefficients, and these coefficients are interpreted as moles, what is the total mass of the reactants? a. 128 g b. 146 g c. 238 g d. 256 g e. none of these ____ 10. The complete combustion of gaseous ethane (C 2 H 6 ) in oxygen yields just carbon dioxide and water. When this reaction is balanced using smallest integer coefficients, and these coefficients are interpreted as moles, what is the total mass of the reactants? a. 62 g b. 126 g c. 142 g d. 284 g e. none of these ____ 11. Consider the unbalanced reaction for the oxidation of sugar (sucrose) by potassium chlorate, KClO 3 ( s ) + C 12 H 22 O 11 ( s ) KCl( s ) + CO 2 ( g ) + H 2 O( g ). When this reaction is balanced, the number of moles of KClO 3 needed to react completely with one mole of C 12 H 22 O
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This note was uploaded on 10/05/2011 for the course CHEM 1403 taught by Professor Chen during the Spring '11 term at St. Mary NE.

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Chapter 2 Practice Quiz - Chapter 2 Practice Quiz Multiple...

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