« previous next »

Author Question: Which of the following statements about how ECPs and RU-486 work is most correct? A) Both ECPs ... (Read 88 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?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Einstein - Science is the work of... Einstein - Science is the work of...
Correct use of a fire extinguisher Correct use of a fire extinguisher
Helping maintain accurate patient records is a critical part of the medical assistant's work. Helping maintain accurate patient records is a critical part of the medical assistant's work.
Many hunger-relief programs work to provide food aid to needy nations Many hunger-relief programs work to provide food aid to needy nations
Breast-Feeding at Work Can Work Breast-Feeding at Work Can Work
Where do Psychological Practitioners Work? Where do Psychological Practitioners Work?
Video: How to find out if a population is evolving?

For a complete list of videos, visit our video library