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
alisha [4.7K]
2 years ago
6

What percentage of radioactive substance remains after two half-lives

Chemistry
1 answer:
Ksju [112]2 years ago
3 0

Answer:

After 2 half-lives there will be 25% of the original isotope, and 75% of the decay product. After 3 half-lives there will be 12.5% of the original isotope, and 87.5% of the decay product. After 4 half-lives there will be 6.25% of the original isotope, and 93.75% of the decay product.

Explanation:

You might be interested in
What part of a chemical is represented by the letters
bonufazy [111]

Answer:

It's compound? It's chemical compound would be represented my letters or numbers

3 0
2 years ago
Read 2 more answers
All of the following are conditions in which the mantle will melt and liquefy EXCEPT ____________________________. a significant
Rama09 [41]
The last one with water
it doesn't make sense.
3 0
3 years ago
Read 2 more answers
True or false. adding more neutrons to a neutrally charged atom will not change the charge
san4es73 [151]
The statement is true.
6 0
3 years ago
A container of N, 03(9) has a pressure of 0.490 atm. When the absolute temperature of the N, O2(g) is tripled, the gas
spayn [35]

Answer: 1.59atm

Explanation:

We have that for the Question "Calculate the final pressure of the gas mixture, assuming that the container volume does not change."

it can be said that

The final pressure of the gas mixture, assuming that the container volume does not change =

From the question we are told

A container of N2O3(g) has a pressure of 0.265 atm. When the absolute temperature of the N2O3(g) is tripled, the gas completely decomposes, producing NO2(g) and NO(g).

3 0
1 year ago
For SCl4, the electron domain geometry is _______(i)________ and the molecular geometry is ______(ii)________.
Likurg_2 [28]

The electron domain geometry is trigonal bipyramidal while the molecular geometry of the compound is seesaw.

The shapes of molecules is determined by the number of electron pairs on the valence shell of the central atom in the molecule. These electron domains include lone pairs and bond pairs.

The lone pairs only contribute towards the electron domain geometry and not the molecular geometry. SCl4 has five electron domains hence its electron domain geometry is trigonal bipyramidal. The molecular geometry of the compound is seesaw.

Learn more: brainly.com/question/6505878

8 0
3 years ago
Other questions:
  • How many atoms of lead are in 3.5 moles of lead?
    7·1 answer
  • The hybridization associated with the central atom of a molecule in which all the bond angles are 180° is ____.
    13·1 answer
  • Which of the following laboratory procedures best illustrates the law of conservation of mass?
    15·2 answers
  • Planck’s constant relates the joules of energy absorbed/released by matter to the ________. atomic number of the element frequen
    5·1 answer
  • : 0.882 mm what’s the answer
    13·2 answers
  • The smallest particle of a covalently bonded compound is a(n) ________.
    15·2 answers
  • Give the answer to the problem below using the correct number of significant digits. (1.3 x 103) x (5.724 x 104)
    14·2 answers
  • approximately how many grams of sodium chloride (NaCl) are required to prepare 500. mL of 3.00 M solution
    11·1 answer
  • 3 reasons why aluminium is used in making of cooking vessels
    10·2 answers
  • Given the following list of densities, which materials would float in a molten vat of lead provided that they do not themselves
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!