This topic contains a solution. Click here to go to the answer

Author Question: The half-life of carbon-14 is about 6000 years. Assume that a sample of charcoal formed by burning ... (Read 111 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592

Question 1

When a rock first crystallizes it has unstable isotopes but as of yet no daughter products. After three half-lives, how much total mass has been lost due to decay?
◦ seven-eighths
◦ two-thirds
◦ one-half
◦ none

Question 2

The half-life of carbon-14 is about 6000 years. Assume that a sample of charcoal formed by burning of living wood 15,000 years ago. How much of the original carbon-14 would remain today?
◦ between one-fourth and one-eighth
◦ between one-half and one-fourth
◦ more than one-half
◦ between one-half and one-third


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by bobbie on Feb 28, 2020

bpool94

  • Sr. Member
  • ****
  • Posts: 354
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly




bobbie

  • Member
  • Posts: 592
Reply 2 on: Feb 28, 2020
YES! Correct, THANKS for helping me on my review


ecabral0

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

For a complete list of videos, visit our video library