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Author Question: What is the hardness of quartz on the Mohs scale? a. 1 b. 4 c. 7 d. ... (Read 75 times)

TFauchery

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on: Jul 28, 2018
What is the hardness of quartz on the Mohs scale?
 a. 1
  b. 4
  c. 7
  d. 10

Question 2

Which of the following ions would never form in chemical reactions?
 a. F2-
  b. Al3+
  c. O2-
  d. N3-


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matt

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

a


TFauchery

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


matt

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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