1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
saul85 [17]
3 years ago
13

The radioactive element​ carbon-14 has a​ half-life of 5750 years. a scientist determined that the bones from a mastodon had los

t 72.6​% of their​ carbon-14. how old were the bones at the time they were​ discovered?
Chemistry
1 answer:
Paha777 [63]3 years ago
8 0
  • 8349 years* I am not sure *
  • as the Half-Life is 5750 this means that 50% of the bone will be lost after 5750 years
  • so 72.6% will be lost after 8349 years by using cross multiplication
You might be interested in
What is the pH of a 1.30 M solution of KF?
Troyanec [42]
I don’t know I’m just answering for points I don’t know 12
5 0
3 years ago
A gas has a temperature of 14 °C, and a volume of 4.5 liters. If the temperature is raised to 29
Ierofanga [76]

The new volume of the gas wii be 4.7 liters.

7 0
3 years ago
Name the following compound: CH3 – CH2 – CH2 – CH2 – CH2 – CH2 – CH2 – CH3 octyle octyne octane octene
ad-work [718]
8 carbons is "oct" prefix (like polygons)
No pi bonds is "ane" suffix.

put it together to get.... Octane

6 0
3 years ago
Read 2 more answers
How can a mixture of ammonia and hydrogen be seperated?
ICE Princess25 [194]
<span>The ammonia molecules have weaker inter molecular bonds then the hydrogen and nitrogen, this means that the ammonia condensed at a lower temperature so will be a liquid that will be separated from the reaction, while the nitrogen and hydrogen remain as gases so are easy are recycle back into the reacting chamber.</span>
4 0
3 years ago
Read 2 more answers
What are the science definitions of these
Alecsey [184]

Answer:

Eon-an indefinite and very long period of time, often a period exaggerated for humorous or rhetorical effect.

Era

Paleozoic-its end was marked by mass extinctions

mesozoic-between cenozoic and paleozoic

cenozoic- most recent era

period-a length of time

epoch-age

mass extinction- a huge die off of animals

landbridge- a strip of land connecting two large land masses

geographic isolation-island

Explanation:

3 0
3 years ago
Other questions:
  • Which of the mole ratios would be used to set up the below problem?
    13·1 answer
  • The atomic mass of an element is equal to the number of:
    14·2 answers
  • A crystal is a solid (or liquid) in which the constituent atoms, molecules, or ions are packed to have a ________________ as wel
    15·2 answers
  • A 75.0 mL volume of 0.200 M NH3 (Kb=1.8*10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 25.0 mL of
    6·1 answer
  • Do all cells share any common features
    6·1 answer
  • Contrast ionic covalent and metallic bonds
    14·1 answer
  • Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20.4 min. What percentage of a sample remains after
    6·1 answer
  • Classify each of the following as a Strong acid (sa) or a Weak acid (wa) and indicate how each should be written in aqueous solu
    15·1 answer
  • Models of airplanes have all
    10·1 answer
  • A state government is trying to decide between using biomass or nuclear power to generate electricity. What advantage does bioma
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!