« previous next »

Author Question: Which of the following statements about how ECPs and RU-486 work is most correct? A) Both ECPs ... (Read 78 times)

viki

  • Hero Member
  • *****
  • Posts: 525
on: Aug 27, 2018
Which of the following statements about how ECPs and RU-486 work is most correct?
 
  A) Both ECPs and RU-486 prevent pregnancy.
  B) ECPs prevent pregnancy, while RU-486 ends pregnancy at an early stage.
  C) ECPs end pregnancy at an early stage, while RU-486 prevents pregnancy.
  D) Both ECPs and RU-486 end pregnancy at an early stage.

Question 2

The rate constant for a particular second-order reaction is 0.47 M-1s-1. If the initial concentration of reactant is 0.25 mol/L, it takes ________ s for the concentration to decrease to 0.20 mol/L.
 
  A) 2.1
  B) 1.4
  C) 1.0
  D) 0.47
  E) 0.20


Zack0mack0101@yahoo.com

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Bayliss and Starling discovered the mechanism by which the small intestine and pancreas work togethe Bayliss and Starling discovered the mechanism by which the small intestine and pancreas work togethe
Vesalius’s De Humani Corporis Fabrica was an important early work on the human species. Vesalius’s De Humani Corporis Fabrica was an important early work on the human species.
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
How to count for the correct number of significant digits How to count for the correct number of significant digits
Math work Math work
A timeline showing the development of genetics from Gregor Mendel’s work A timeline showing the development of genetics from Gregor Mendel’s work
Video: Insulin (glucose uptake by body cells), glycogenesis and lipogenesis

For a complete list of videos, visit our video library