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Author Question: A walnut stuck to a pin is burned beneath a can containing 100.0 grams of water at 21C. After the ... (Read 100 times)

nenivikky

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on: Aug 27, 2018
A walnut stuck to a pin is burned beneath a can containing 100.0 grams of water at 21C. After the walnut has completely burned, the water's final temperature is a warmer 28C. How much heat energy arose from the burning walnut?
 
  A) 3,000 joules
  B) 9,000 joules
  C) 5,000 joules
  D) 2,000 joules

Question 2

What was the first polymeric hydrocarbon extensively utilized for its material properties?
 
  A) rubber
  B) vulcanized-rubber
  C) nylon
  D) nitrocellulose
  E) none of the above


jaaaaaaa

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Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A


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nenivikky

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Reply #2 on: Aug 27, 2018
Thanks


jaaaaaaa

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Reply #3 on: Aug 27, 2018
Welcome :)


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