Classify each of the following chemical changes as exothermic or endothermic reaction. Chemical Change Exothermic or Endothermic a. A reaction absorbs 550 kJ. b. The energy level of the products is lower than that of the reactants. c. The metabolism of glucose in the body provides energy. d. The energy level of the products is higher than that of the reactants. e. In the body, the synthesis of proteins requires energy.
Classify each of the following chemical changes as exothermic or endothermic reaction. Chemical Change Exothermic or Endothermic a. A reaction absorbs 550 kJ. b. The energy level of the products is lower than that of the reactants. c. The metabolism of glucose in the body provides energy. d. The energy level of the products is higher than that of the reactants. e. In the body, the synthesis of proteins requires energy.
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter16: Reaction Rates
Section: Chapter Questions
Problem 4STP
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Question
- Classify each of the following chemical changes as exothermic or endothermic reaction.
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Exothermic or Endothermic |
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a. A reaction absorbs 550 kJ. |
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b. The energy level of the products is lower than that of the reactants. |
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c. The |
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d. The energy level of the products is higher than that of the reactants. |
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e. In the body, the synthesis of proteins requires energy. |
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- 0.400 moles of sucrose, C12H22O11, contains _________________ C atoms.
- 12 b. 6.02 x 1023 c. 2.89 x 1024 d. 5.02 x 1022 e. 4.80
- Three moles of copper(II) sulfate, CuSO4, contains __________________ moles of O.
- 4 b. 6.02 x 1023 c. 1.51 x 1023 d. 8 e. 12.04 x 1023 f. 12
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