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Author Question: The change in the internal energy of a system that releases 2,500 J of heat and that does 7,655 J of ... (Read 26 times)

Jipu 123

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on: Aug 27, 2018
The change in the internal energy of a system that releases 2,500 J of heat and that does 7,655 J of work on the surroundings is ________ J.
 
  A) -10,155
  B) -5,155
  C) -1.91  107
  D) 10,155
  E) 5,155

Question 2

Which of the following statements best describes the circumstances that lead to chemical tragedies?
 
  A) Hazardous and poisonous chemicals should be banned or destroyed so that accidents do not occur.
  B) Most tragedies occur because of misuse of hazardous or poisonous chemicals.
  C) Hazardous and poisonous chemicals cannot be made safe.
  D) The risks of using hazardous chemicals always outweigh the benefits.
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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anyusername12131

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Reply #1 on: Aug 27, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Jipu 123

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Gracias!

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