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Author Question: A great deal of heat is released when liquid water freezes. Why doesn't this heat simply remelt the ... (Read 107 times)

futuristic

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on: Aug 27, 2018
A great deal of heat is released when liquid water freezes. Why doesn't this heat simply remelt the ice?
 
  A) Once the water is in crystalline formation, it takes even more energy to melt it.
  B) This heat is radiated outwards to the environment, rather than back into the ice.
  C) The heat is not concentrated enough to melt ice.
  D) There is not enough energy in the heat to melt ice.

Question 2

Which of the following substances is pure?
 
  A) an ionic compound consisting of sodium and chlorine ions
  B) a covalent compound consisting of one type of molecule
  C) an element
  D) all of the above
  E) none of the above


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kaykay69

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

B

Answer to Question 2

D


futuristic

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Reply 2 on: Aug 27, 2018
Gracias!

vickybb89

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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