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 75 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

mjenn52

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Cell-wall structure of Gram-positive and Gram-negative bacteria. Cell-wall structure of Gram-positive and Gram-negative bacteria.
Sandia ear-plug-sized samplers hang poised to sample gases relevant to climate and weather. Sandia ear-plug-sized samplers hang poised to sample gases relevant to climate and weather.
Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
Ethnic Differences in Financial Support for College Based on a sample of 304 emerging adults aged 2 Ethnic Differences in Financial Support for College Based on a sample of 304 emerging adults aged 2
Sample Exercise Prescription for Weight Training: Advanced Sample Exercise Prescription for Weight Training: Advanced
The percentage of women over 40 in the United States who are childless has almost doubled in the ... The percentage of women over 40 in the United States who are childless has almost doubled in the ...
Video: How proteins function? How do proteins work?

For a complete list of videos, visit our video library