Chem 1311 exam 4 practice Study guides, Revision notes & Summaries
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![CHEM 1311 EXAM 4 Practice Questions With Complete Solutions](/docpics/3492401/651007f8b4916_3492401_121_171.jpeg)
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CHEM 1311 EXAM 4 Practice Questions With Complete Solutions
- Exam (elaborations) • 4 pages • 2023
- Available in package deal
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When a system _____________, change of E is always negative. correct answer: Gives off heat and does work 
 
The reaction 4Al(s) + 3O2(g) --> 2Al2O3(s) Delta H = -3351 kJ is ___________, and therefore heat is ___________ by the reaction. correct answer: Exothermic, released 
 
Which of the following is a statement of Hess's law? correct answer: If a reaction is carried out in a series of steps, the H∆ for the reaction will equal the sum of the enthalpy changes for the individual steps. ...
![CHEM 1311 EXAM 4 Practice 2023 with 100% correct answers](/docpics/3520503/6515bb44c0bb6_3520503_121_171.jpeg)
-
CHEM 1311 EXAM 4 Practice 2023 with 100% correct answers
- Exam (elaborations) • 3 pages • 2023
- Available in package deal
-
- $14.99
- + learn more
When a system _____________, change of E is always negative. correct answersGives off heat and does work 
 
The reaction 4Al(s) + 3O2(g) --> 2Al2O3(s) Delta H = -3351 kJ is ___________, and therefore heat is ___________ by the reaction. correct answersExothermic, released 
 
Which of the following is a statement of Hess's law? correct answersIf a reaction is carried out in a series of steps, the H∆ for the reaction will equal the sum of the enthalpy changes for the individual steps. 
 
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