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Author Question: The element that is most abundant in Earth's crust is a. silicon. b. iron. c. oxygen. d. ... (Read 64 times)

lb_gilbert

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The element that is most abundant in Earth's crust is
 a. silicon.
  b. iron.
  c. oxygen.
  d. nitrogen.

Question 2

What is the formula of the compound formed from the ions of aluminum and oxygen?
 a. Al2O3
  b. AlO
  c. AlO3
  d. None of these



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mtmmmmmk

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Answer to Question 1

c

Answer to Question 2

a





 

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