2. The overall reaction in a commercial heat pack can be represent4Fe(s) + 30₂ (g)2Fe₂O3 (8)How much heat is released when 1.00 mole of Fe₂O3 is produced?a)-1652 kJb) + 1652 kJe) - 826 kJd) + 826 kJΔΗ = - 1652 kJ 6. Calculate the sodium ion concentration when 70.0 mL of 3.0 M sodium carbonate(Na₂CO3) is added to 30.0 mL of 1.0 M sodium bicarbonate (NaHCO3).a)2.4 Mb) 6.4 Md) 1.5 Mc) 4.5 M7. Which of the following dissolve in water:

2) Given, 4Fe(s) + 3O2(g) ➝ 2Fe2O3 ∆H = -1652 kJ moles of Fe2O3 produced = 1.00 mole Amount of…

2. The overall reaction in a commercial heat pack can be represent 4Fe(s) + 30₂ (g) 2Fe₂O3 (s) How much heat is released when 1.00 mole of Fe₂O3 is produced? a)-1652 kJ b) + 1652 kJ c) - 826 kJ d) + 826 kJ ΔΗ = - 1652 kJ

2. The overall reaction in a commercial heat pack can be represent 4Fe(s) + 30₂ (g) 2Fe₂O3 (s) How much heat is released when 1.00 mole of Fe₂O3 is produced? a)-1652 kJ b) + 1652 kJ c) - 826 kJ d) + 826 kJ ΔΗ = - 1652 kJ

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter7: Chemical Energy

Section: Chapter Questions

Problem 15Q: The enthalpy change for the reaction CH4(g)+2O2(g)CO2(g)+2H2O(l) is 891 kJ for the reaction as...

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Question

2. The overall reaction in a commercial heat pack can be represent
4Fe(s) + 30₂ (g)
2Fe₂O3 (8)
How much heat is released when 1.00 mole of Fe₂O3 is produced?
a)-1652 kJ
b) + 1652 kJ
e) - 826 kJ
d) + 826 kJ
ΔΗ = - 1652 kJ

6. Calculate the sodium ion concentration when 70.0 mL of 3.0 M sodium carbonate
(Na₂CO3) is added to 30.0 mL of 1.0 M sodium bicarbonate (NaHCO3).
a)2.4 M
b) 6.4 M
d) 1.5 M
c) 4.5 M
7. Which of the following dissolve in water:

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