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

Author Question: The following tetracylic structure is common to steroids, an importnat class of biomolecules that ... (Read 29 times)

itsmyluck

  • Hero Member
  • *****
  • Posts: 546
on: Aug 23, 2018

The following tetracylic structure is common to steroids, an importnat class of biomolecules that have a number of sterocenters. Modify the structure on the right by placing the hydrogen atoms and methyl groups to accurately depict the structure on the left (including steeochemistry).
 
   



Question 2

Explain the formation of soap scum, formed in areas which have hard water. What chemical reaction takes place, and what physical process results?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

flexer1n1

  • Sr. Member
  • ****
  • Posts: 373
Reply #1 on: Aug 23, 2018
Answer to Question 1



Answer to Question 2

The sodium ion of a water-soluble (micelle-forming) sodium soap is exchanged for a calcium ion. The calcium salt is not soluble in water and precipitates.


itsmyluck

  • Member
  • Posts: 546
Reply 2 on: Aug 23, 2018
Gracias!

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Common Root Words and Combining Forms Cont. Common Root Words and Combining Forms Cont.
Common substances for scrubs and/or body polishes. Common substances for scrubs and/or body polishes.
IgG Antibody Structure IgG Antibody Structure
Lewis structure of (CH3)2CHOCH2CH2CH2OH Lewis structure of (CH3)2CHOCH2CH2CH2OH
Bacterial promoter structure and consensus sequences Bacterial promoter structure and consensus sequences
Nucleosome structure Nucleosome structure
Video: DNA close up Animation

For a complete list of videos, visit our video library