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Author Question: What is corundum? If it is not in the rare form described here, do we use it for anything? What ... (Read 7 times)

bobypop

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on: Jul 16, 2018
What is corundum? If it is not in the rare form described here, do we use it for anything?
 
  What will be an ideal response?

Question 2

One mineral is held together by van der Waal's forces and the other is held together by metallic bonds. Which is stronger?
 
  A) They are equally strong.
  B) They are equally weak.
  C) The mineral held together by metallic bonds is stronger.
  D) The mineral held together by van der Waal's forces is weaker.


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fraziera112

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: a hard mineral, sandpaper

Answer to Question 2

Answer: C


bobypop

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Reply 2 on: Jul 16, 2018
Excellent

patma1981

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

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