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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 89 times)

lb_gilbert

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

c

Answer to Question 2

a


lb_gilbert

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Reply #2 on: Jul 28, 2018
Thanks


mtmmmmmk

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Reply #3 on: Jul 28, 2018
Welcome :)


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