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
blagie [28]
3 years ago
8

If the half life of a radioactive isotope is 4000 years, how much would be left in a fossil after 4000 years

Chemistry
1 answer:
mamaluj [8]3 years ago
5 0
Since the half life of the radioactive isotope is 4,000 years, after 4,000 years the amount of the isotope would decrease by half. (Hence the name, half life.) So, after 4,000 years, there would be half of the isotope left in the fossil.
You might be interested in
Which source of energy causes most of the water evaporation on Earth’s surface?
elena-s [515]
The heat energy that causes most of the water evaporate on the surface of the Earth is the Sun. Which provides earth most of the thermal energy into the hydro-thermodynamic system on Earth.

{{Sun}}
8 0
3 years ago
Please help in full sentances no copy paste in your own words
Katena32 [7]

Answer:

Explanation:

The river bank can expand due to the water breaking apart and move for sediment.

8 0
3 years ago
How many atoms of carbon are in the sample
Serhud [2]
There are six atoms in the carbon
6 0
3 years ago
Write the number in scientific nation form
Yuri [45]

Answer:

its already in scientific notation form however its ordinary or real form is -0.005682

Explanation:

scientific notation

when a number is expressed with some power of 10 multiplied by a number between 1 to 10 is called scientific notation

4 0
3 years ago
In acetyl CoA formation, the carbon-containing compound from glycolysis is oxidized to produce acetyl CoA. From the following co
kondor19780726 [428]

Answer:

- Net Input: NAD⁺, coenzyme A, pyruvate

- Net Output: NADH, acetyl CoA, CO₂

- Not input or output: O₂, ADP, glucose and ATP

Explanation:

Hello,

In this case, it is important to recall that acetyl-CoA is produced either by oxidative decarboxylation of pyruvate derived from glycolysis, which is carried out into the mitochondrial matrix, by cause of the oxidation of high-order fatty acids, or by oxidative degradation of very specific amino acids. Acetyl-CoA then enters in the citric acid cycle where it is oxidized in the light of energy production.

In this manner, during such processes, there are some net inputs and outputs, therefore, they are sorted as show below, considering there some of them not classified neither as input nor output:

- Net Input: NAD⁺, coenzyme A, pyruvate

- Net Output: NADH, acetyl CoA, CO₂

- Not input or output: O₂, ADP, glucose and ATP

Best regards.

8 0
4 years ago
Other questions:
  • Phosgene is a potent chemical warfare agent that is now outlawed by international agreement. It decomposes by the reaction: COCl
    6·1 answer
  • How many grams of water will form when 10.54g of h2o react with 95.10g of O2
    8·1 answer
  • Sunny makes a poster showing the levels of
    11·2 answers
  • Which is a property that most nonmetals have in common
    15·2 answers
  • Identify examples of the list below. Check all that apply
    7·2 answers
  • Photosynthesis transfers electrons from water to carbon dioxide molecules. Why is this electron transfer called an oxidation red
    8·1 answer
  • Which chemical equation describes an acid-base neutralization reaction?
    6·1 answer
  • Can someone please help me
    14·1 answer
  • A transverse wave moves a medium at an abtuse angle to the wave , true or false ?​
    14·1 answer
  • HELP PLEASE !!!<br> Name the Salt formed When Nitric acid + Magnesium hydroxide
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!