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
bulgar [2K]
2 years ago
15

The isotope 226Ra has a half-life for radioactive decay of 1600 Y. How long will it take the amount of 226 Ra in a sample of 226

RaCl2 to decrease by 25%
Chemistry
1 answer:
Nostrana [21]2 years ago
8 0
The correct answer is 226Ra is half and long as radioactive decay
You might be interested in
BRAINLIEST IF CORRECT
otez555 [7]
In a food chain, energy is passed through one link to another. When a herbivore eats only a certain fraction of the energy, (which comes from the food) it becomes new body mass; the rest of the energy is lost as waste or used up by the herbivore in order to carry out its life processes (ex. movement, digestion, reproduction). It doesn’t necessarily threaten the plants survival, there’s also a benefit. When a animals poops out the fruit (defecate) in another area those seeds get carried to new places with the help of a dab of fertilizer and a little bit of moisture. They also help supply nutrients when they die and decompose.

4 0
2 years ago
Read 2 more answers
Which of these is a property of bases?
Gwar [14]
They turn litmus paper blue
6 0
3 years ago
Read 2 more answers
Determine the number of 3s electrons in Na .
Scorpion4ik [409]

Answer:

Explanation:The atomic number of sodium is 11. That is, the number of electrons in sodium is 11. Therefore, a sodium atom will have two electrons in the first shell, eight in the 2nd orbit, and an electron in the 3rd shell.

3 0
1 year ago
If the temperature we're to go down how would that effect the solubility of each solute
vova2212 [387]

well when there is more kinetic energy in a solution the higher its temperature is going to be so the more the molecules are able to be help together, the lower the temperature the more difficult it would be to break the molecule apart in order to bond with it.

6 0
3 years ago
Difference between reactants and products.​
Arisa [49]

Answer:

a reactant is a substance that is at the beginning of a Chemical reaction while a product is a substance that is present at the end of a chemical reaction.in other words a reactant is a substance used up in a chemical reaction to produce something while a reactant is what is produced after a chemical reaction.

I hope this helps

5 0
3 years ago
Other questions:
  • What is the answer to number one
    9·1 answer
  • A mixture is -
    14·1 answer
  • A positively charged ion is called a cation which means there are more protons in the atom compared to the number of protons in
    14·1 answer
  • How are the noble gases stable and do they exist separatly with no other element
    12·1 answer
  • (REALLY NEED HELP 30 POINTS )If the mass of a material is 12 grams and the volume of the material is 49 cm^3, what would the den
    12·2 answers
  • Calcium chloride contains only calcium and chloride. What is the formula for this compound?
    13·2 answers
  • What is the electron configurations of the gallium ion
    8·1 answer
  • A compound is 70.0% iron and 30.0% oxygen. Its molecular mass is 479.1 g/mol. Determine the
    9·1 answer
  • How many grams of Sn will be created when 114 grams of SnO2 react with excess H2? SnO2 + H2 ->Sn + H2O
    5·1 answer
  • Joaquin's doctor tested Joaquin's reflexes by tapping his knee. The doctor
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!