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
yan [13]
3 years ago
14

If you have one kilogram of radionuclide, how much will remain after one half-life has passed?

Chemistry
1 answer:
const2013 [10]3 years ago
7 0
If we start with 1 kg or 1000 g of radionuclide, after one half-life has passed, one-half of the original amount of radionuclide will remain. Therefore, 500 g of the radionuclide will remain. The half-life is the time it takes for a radioactive substance to decay to half its initial amount.
You might be interested in
Name the functional group in the following molecule:
stellarik [79]

Answer:

The functional group is called an amide. This is option C.

Explanation:

We see this is a three-carbon chain (a propyl chain), that ends with a double bond to oxygen and a single bond to an amine group (NH2). If the end carbon were only bound to the NH2 group and 2 hydrogen atoms, it would be an amine. If the end carbon only had a double bond to oxygen and a single bond to hydrogen, it would be an aldehyde. However, when a terminal carbon (a carbon at the end of a chain) has both a double bond to oxygen, and a single bond to an amine (NH2), it is called an amide.

We can also discount the answer thiol right away because those have a carbon-sulfur bond, and there is no sulfur in this molecule.

3 0
3 years ago
If kerosene has a specific gravity of 0.820, what force will be exerted on the circular bottom of a cylindrical kerosene tank th
Svet_ta [14]

Answer:

F = 774146.534\,N

Explanation:

The pressure at the bottom of the tank is:

P_{bottom} = (0.820)\cdot (1000\,\frac{kg}{m^{3}})\cdot (9.807\,\frac{m}{s^{2}})\cdot (30\,ft)\cdot (\frac{0.305\,m}{1\,ft} )

P_{bottom} = 73581.921\,Pa

The force exerted on the circular bottom is:

F=(73581.921\,Pa)\cdot (\frac{\pi}{4} )\cdot [(12\,ft)\cdot (\frac{0.305\,m}{1\,ft} )]^{2}

F = 774146.534\,N

4 0
3 years ago
What is the correct name for N2O
krek1111 [17]

Explanation:

Nitrous oxide

^_^^.^^.^

6 0
3 years ago
Read 2 more answers
What is Photosynthesis?​
Bezzdna [24]

Answer:

Photosynthesis is the process in which plants generate their own food by influence of the green pigment ( chlorophyll )

3 0
3 years ago
Read 2 more answers
Electromagnetic waves consist of
sineoko [7]
Electromagnetic consists of both electrical and magnetic fields so D. :)
3 0
3 years ago
Other questions:
  • Which of the following factors contributes to the relatively greater atomic size of the higher atomic number elements within a p
    12·1 answer
  • ____ is a type of weathering where rock is broken down as it absorbs water
    7·2 answers
  • What can I do a sentence with frost wedging
    10·1 answer
  • Nitrogen and hydrogen react to form ammonia. Consider the mixture of N2 (blue spheres) and H2 (gray spheres) in the illustration
    15·1 answer
  • In a set of classic experiments performed in the early 1950s, Urey and Miller subjected an experimental system composed of H2, C
    5·1 answer
  • Where does the ocean get the most intense heat from the sun .
    11·2 answers
  • How many moles of RbNO2 are present in a sample with 3.4 x 1024 particles?
    11·1 answer
  • Which method separates components of a mixture according to how quickly the particles travel through a medium?
    14·2 answers
  • During a chemistry experiment, two colorless liquids were combined in a beaker. The beaker
    8·1 answer
  • Name the reaction processes that lead to the two types of synthetic polymers.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!