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

Author Question: There are ________ hydrogen atoms in 25 molecules of C4H4S2. A) 25 B) 3.8 1024 C) 6.0 1025 ... (Read 162 times)

bb

  • Hero Member
  • *****
  • Posts: 544
on: Aug 27, 2018
There are ________ hydrogen atoms in 25 molecules of C4H4S2.
 
  A) 25
  B) 3.8  1024
  C) 6.0  1025
  D) 100
  E) 1.5  1025

Question 2

The LD50 value is the amount of a substance that will kill 50 of test animals.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

TRUE


bb

  • Member
  • Posts: 544
Reply 2 on: Aug 27, 2018
Excellent

nothere

  • Member
  • Posts: 324
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester Bartel and Szostak demonstrated chemical selection for RNA molecules that can catalyze phosphoester
The catabolism of various molecules from food. The catabolism of various molecules from food.
Diagram of a cell membrane. The cell membrane is a double layer of phospholipid molecules with ... Diagram of a cell membrane. The cell membrane is a double layer of phospholipid molecules with ...
Yeast aspartyl tRNA synthetase complexed with two molecules of tRNAAsp Yeast aspartyl tRNA synthetase complexed with two molecules of tRNAAsp
A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is: A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:
Amplification of recombinant DNA molecules in bacteria Amplification of recombinant DNA molecules in bacteria
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library