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

Author Question: A radioactive substance containing 4.00 1016 unstable atoms has a half-life of 2.0 days. What is ... (Read 109 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
on: Jul 27, 2018
A radioactive substance containing 4.00  1016 unstable atoms has a half-life of 2.0 days. What is its activity (in curies) after 1 day?
 
  What will be an ideal response?

Question 2

In the fission reaction 235U + 1n 141Ba + 92Kr + neutrons, the number of neutrons produced is
 
  A) 0.
  B) 4.
  C) 1.
  D) 3.
  E) 2.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

emily12345

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 27, 2018
Answer to Question 1

4.3 Ci

Answer to Question 2

D


piesebel

  • Member
  • Posts: 565
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

The life cycle of the early diverging moss genus, Sphagnum, illustrating reproductive adaptations th The life cycle of the early diverging moss genus, Sphagnum, illustrating reproductive adaptations th
Stressful Life Events, 5-HTT, and Depression Stressful Life Events, 5-HTT, and Depression
Radioactive waste Radioactive waste
What is an atoms? What is an atoms?
Remaining health-adjusted life expectancy (years) at age 25 Remaining health-adjusted life expectancy (years) at age 25
Plant life cycle Plant life cycle
Video: Energy Flow - Trophic Levels and Food

For a complete list of videos, visit our video library