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Energy Changes,reaction Rates,and Equilibrium
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General Organic and Biological Chemistry Study Set 1

Chemistry

Quiz 6 :
Energy Changes,reaction Rates,and Equilibrium

Quiz 6 :
Energy Changes,reaction Rates,and Equilibrium

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The law of conservation of energy states that ________.
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Answer:

D

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A chemical reaction requires 31.39 kJ. How many kilocalories does this correspond to?
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Answer:

B

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A chemical reaction releases 55.2 kcal. How many kilojoules does this correspond to?
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Answer:

A

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Which of the following energy quantities is equivalent to 578 J?
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Which of the following energy quantities is equivalent to 11.9 kcal?
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Which of the following energy quantities is equivalent to 258 Cal?
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Which quantity represents the largest amount of stored energy?
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A peanut butter and jelly sandwich contains 9.00 g of fat,6.00 g of protein,and 25.0 g of carbohydrate. How many Calories does this sandwich provide?
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Which bond is the strongest?
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Which bond is the weakest?
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Which term correctly describes a reaction in which the energy of the products is higher than the energy of the reactants?
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Consider the reaction: C3H8(g)+ 5 O2(g)→ 3 CO2(g)+ 4 H2O(g),where ΔH = -531 kcal. Which statement concerning this reaction is true?
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Consider the reaction,C2H4(g)+ H2(g)→ C2H6(g),where ΔH = -137 kJ. How many kilojoules are released when 3.5 mol of C2H4 reacts?
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Consider the reaction,C2H4(g)+ H2(g)→ C2H6(g),where ΔH = -137 kJ. How many kilojoules are released when 55.3 g of C2H4 reacts?
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Consider the reaction,3 NO2(g)+ H2O(l)→ 2 HNO3(aq)+ NO(g),where ΔH = -137 kJ. How many kilojoules are released when 92.3 g of NO2 reacts?
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Which of the following is a true statement about the energy diagram shown below? img
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In the reaction: 2 C2H6(g)+ 7 O2(g)→ 4 CO2(g)+ 6 H2O(g),increasing the concentration of C2H6(g)will ________.
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Catalysts accelerate a reaction by ________.
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Which value (if any)in each pair corresponds to a faster reaction?
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Which value (if any)in each pair corresponds to a slower reaction?
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