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6. A portion that is singled out in a study where energy can be transferred back and forth is called he surroundings. A thermochemical system where neither energy can be exchanged with its surroundings is called a closed system. 7. Compounds formed from their elements in exothermic reaction have negative AHt. lonic compounds usually have more negative enthalpies of formation. 8. Thermodynamics can tell us the direction and extent of a reaction but tells nothing about the speed of a reaction. Majority of spontaneous reactions are exothermic especially in irreversible reactions. 9. Enthalpy provides a quantitative measure of how much energy is spread out when something happens. Entropy is associated with the second law of thermodynamics.

6. A portion that is singled out in a study where energy can be transferred back and forth is called he surroundings. A thermochemical system where neither energy can be exchanged with its surroundings is called a closed system. 7. Compounds formed from their elements in exothermic reaction have negative AHt. lonic compounds usually have more negative enthalpies of formation. 8. Thermodynamics can tell us the direction and extent of a reaction but tells nothing about the speed of a reaction. Majority of spontaneous reactions are exothermic especially in irreversible reactions. 9. Enthalpy provides a quantitative measure of how much energy is spread out when something happens. Entropy is associated with the second law of thermodynamics.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer number 6 to 10 pls. and follow the instructions on the first picture.

MODIFIED TRUE OR FALSE. Write the CAPITAL Letter of the correct answer. A if both statements are true B if the 1st statement is false and the 2nd is true C if the 1st statement is true and the 2nd is false D if both statements are false I.
Transcribed Image Text:MODIFIED TRUE OR FALSE. Write the CAPITAL Letter of the correct answer. A if both statements are true B if the 1st statement is false and the 2nd is true C if the 1st statement is true and the 2nd is false D if both statements are false I.
6. A portion that is singled out in a study where energy can be transferred back and forth is called the surroundings. A thermochemical system where neither energy can be exchanged with its surroundings is called a closed system. 7. Compounds formed from their elements in exothermic reaction have negative AHf. lonic compounds usually have more negative enthalpies of formation. 8. Thermodynamics can tell us the direction and extent of a reaction but tells nothing about the speed of a reaction. Majority of spontaneous reactions are exothermic especially in irreversible reactions. 9. Enthalpy provides a quantitative measure of how much energy is spread out when something happens. Entropy is associated with the second law of thermodynamics.
Transcribed Image Text:6. A portion that is singled out in a study where energy can be transferred back and forth is called the surroundings. A thermochemical system where neither energy can be exchanged with its surroundings is called a closed system. 7. Compounds formed from their elements in exothermic reaction have negative AHf. lonic compounds usually have more negative enthalpies of formation. 8. Thermodynamics can tell us the direction and extent of a reaction but tells nothing about the speed of a reaction. Majority of spontaneous reactions are exothermic especially in irreversible reactions. 9. Enthalpy provides a quantitative measure of how much energy is spread out when something happens. Entropy is associated with the second law of thermodynamics.
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