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Author Question: A 3.45 gram sample of hematite (Fe2O3 ) that contains 2.41 grams of Fe has what percentage Fe by ... (Read 114 times)

burchfield96

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on: Aug 27, 2018
A 3.45 gram sample of hematite (Fe2O3 ) that contains 2.41 grams of Fe has what percentage Fe by mass?
 
  A) 41.0
  B) 31.1
  C) 69.9
  D) 59.9

Question 2

Both water-soluble and water-insoluble vitamins can be toxic in large quantities. Our bodies are much more tolerant of the water-soluble ones because ________.
 
  A) our bodies are able to store the excess vitamins in our fat reserves
  B) they tend to be the weaker vitamins that the body needs a lot of
  C) excess quantities of these vitamins are readily excreted
  D) these are the vitamins that our body doesn't really use


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Jmfn03

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

C

Answer to Question 2

C


burchfield96

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

jojobee318

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Reply 3 on: Yesterday
Excellent

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