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Author Question: What is the percentage by mass of iron (Fe) in the mineral hematite (Fe2O3)? A) 40 B) 60 C) 70 ... (Read 87 times)

dalyningkenk

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on: Aug 27, 2018
What is the percentage by mass of iron (Fe) in the mineral hematite (Fe2O3)?
 
  A) 40
  B) 60
  C) 70
  D) 30

Question 2

Deionized water can conduct electricity.
 
  Indicate whether the statement is true or false


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patma1981

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

C

Answer to Question 2

FALSE


dalyningkenk

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Reply 2 on: Aug 27, 2018
Wow, this really help

nanny

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Reply 3 on: Yesterday
Gracias!

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