This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 3.45 gram sample of hematite (Fe2O3 ) that contains 2.41 grams of Fe has what percentage Fe by ... (Read 103 times)

burchfield96

  • Hero Member
  • *****
  • Posts: 610
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jmfn03

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

C


burchfield96

  • Member
  • Posts: 610
Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review

amandanbreshears

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Microscopic photo taken by Opportunity showing a gray hematite concretion, indicative of the past pr Microscopic photo taken by Opportunity showing a gray hematite concretion, indicative of the past pr
Sample Advance Directive Cont. Sample Advance Directive Cont.
Sample root cause analysis: Duplicate dose of a narcotic analgesic. Sample root cause analysis: Duplicate dose of a narcotic analgesic.
Sample One-Day Menu Sample One-Day Menu
The Gram-Schmidt Process for Finding an Orthonormal Basis The Gram-Schmidt Process for Finding an Orthonormal Basis
A sample of baking soda is heated and releases carbon dioxide gas into a 1000-mL A sample of baking soda is heated and releases carbon dioxide gas into a 1000-mL
Video: Dissociative Disorders (Part 2)

For a complete list of videos, visit our video library