« previous next »

Author Question: Which of the following statements about how ECPs and RU-486 work is most correct? A) Both ECPs ... (Read 30 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?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

In the communication technique of collaborating, the nurse sends the message that the nurse and pati In the communication technique of collaborating, the nurse sends the message that the nurse and pati
Correct use of a fire extinguisher Correct use of a fire extinguisher
The Journey to Work, Philadelphia, 1850 The Journey to Work, Philadelphia, 1850
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
If the valve clearance (lash) is not correct, loosen the retaining nut and turn the valve adjusting ... If the valve clearance (lash) is not correct, loosen the retaining nut and turn the valve adjusting ...
How to convert verbal statements into algebraic equations (Part 3) How to convert verbal statements into algebraic equations (Part 3)
Video: Structures that affect circulation - heart and systolic/diastolic BP

For a complete list of videos, visit our video library