9. Given 2Al (s) +3/2 O 2(g) Al 2 O 3(s); Delta*H = - 1670kJ What is Delta*H for the reaction? 2Al 2 O 3(s) 4Al (s) +3O 2(g) Delta H= ? a . 3340 kJ b. 1670 kJ -3340 kJ d . -1670 kJ e . - 835kJ10. If 10.0 ml of (aq) and 10.0 ml of NaOH(aq) are combined in calorimeter and the temperature of the solution increases, which of the following is correct. a. g cal is positive and q rxr is negative. b. q cal is negative and qrxn is positive. . q cal and are positive. d. q cal and are negative . 9. Given 2A16) + 3/2 O2(g) → Al2O3(s)AH = -1670 kJWhat is AH for the reaction?2A½O3(s) → 4Al(s) + 302(g) AH = ?a. 3340 kJb. 1670 kJc. -3340 kJd. -1670 kJe. -835 kJ10. If 10.0 ml of HCl (aq) and 10.0 ml of NaOH(aq) are combined in calorimeter and thetemperature of the solution increases, which of the following is correct.a. qçal is positive and qrxn is negative.b. qcal is negative and qrxn is positive.c. qçal and qrxn are positive.d. qcal and qrxn are negative.ADLE

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Answered: 9. Given 2Als) + 3/2 O2(g) → Al2O3(s)…

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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9. Given 2Al (s) +3/2 O 2(g) Al 2 O 3(s); Delta*H = - 1670kJ What is Delta*H for the reaction? 2Al 2 O 3(s) 4Al (s) +3O 2(g) Delta H= ? a . 3340 kJ b. 1670 kJ -3340 kJ d . -1670 kJ e . - 835kJ 10. If 10.0 ml of (aq) and 10.0 ml of NaOH(aq) are combined in calorimeter and the temperature of the solution increases, which of the following is correct. a. g cal is positive and q rxr is negative. b. q cal is negative and qrxn is positive. . q cal and are positive. d. q cal and are negative .

9. Given 2A16) + 3/2 O2(g) → Al2O3(s)
AH = -1670 kJ
What is AH for the reaction?
2A½O3(s) → 4Al(s) + 302(g) AH = ?
a. 3340 kJ
b. 1670 kJ
c. -3340 kJ
d. -1670 kJ
e. -835 kJ
10. If 10.0 ml of HCl (aq) and 10.0 ml of NaOH(aq) are combined in calorimeter and the
temperature of the solution increases, which of the following is correct.
a. qçal is positive and qrxn is negative.
b. qcal is negative and qrxn is positive.
c. qçal and qrxn are positive.
d. qcal and qrxn are negative.
ADLE

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