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
Masteriza [31]
2 years ago
10

How long is radioactive waste from nuclear plants radioactive?

Chemistry
2 answers:
Anettt [7]2 years ago
8 0

Answer:about 10,000 years b maybe

Explanation:Strontium-90 and cesium-137 have half-lives of about 30 years (half the radioactivity will decay in 30 years). Plutonium-239 has a half-life of 24,000 years. High-level wastes are hazardous because they produce fatal radiation doses during short periods of direct exposure.

Pavlova-9 [17]2 years ago
5 0
It can stay radioactive from 1,000 to 10,000 years. I honestly don’t know which answer to choose but it’s going to be between those two.
You might be interested in
Determine the mass of SO₂ that contains 6.075 × 10^26 S atoms.​
Misha Larkins [42]

Avogadro's law states that in a mole of any substance, there are 6.022 \times 10^{23} atoms. This means that in the given sample, there are

\frac{6.075 \times 10^{26}}{6.022 \times 10^{23}}=1008.8010627 \text{ mol}

  • The atomic mass of sulfur is 32.06 amu.
  • The atomic mass of oxygen is 15.9994 amu.

So, the atomic mass of sulfur dioxide is

32.06+2(15.9994=64.0588 \text{ g/mol}

Therefore, the mass is:

(64.0588)(1008.8010627)=\boxed{64620 \text{ g (to 4 sf)}}

7 0
2 years ago
Calculate the empirical formula for DCBN, given that the percent composition is 48.9%C, 1.76%H, 41.2%Cl, and 8.15%N.
sweet [91]

Answer:

empirical formula is C7H3NCl2

Explanation:

too much work too explain and im lazy

5 0
3 years ago
A 7.5 L cylinder contains 5 moles of gas at a temperature of 274°C. What is its pressure in kiloPascals (kPa)?
AleksAgata [21]
<h3><u>Answer;</u></h3>

 = 3032.15 kPa

<h3><u>Explanation;</u></h3>

Using the equation;

PV = nRT , where P is the pressure,. V is the volume, n is the number of moles and T is the temperature and R is the gas constant, 0.08206 L. atm. mol−1.

Volume = 7.5 L, T = 274 +273 = 547 K, N = 5 moles

Therefore;

Pressure = nRT/V

               = (5 × 0.08206 × 547)/7.5 L

               = 29.925 atm

But; 1 atm = 101325 pascals

Hence; Pressure = 3032150.63 pascals

                            <u>= 3032.15 kPa</u>

               

3 0
3 years ago
It asks for the percentage but I’m not sure how to find it when the answer is 67.1%
Vlada [557]
Since a percentage is out of 100, do the % / 100


Divide the percent by 100
4 0
3 years ago
What is chemical weathering
natima [27]

Explanation:

Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

8 0
3 years ago
Other questions:
  • Which would cause a hazard when working with chemicals in laboratory?
    5·1 answer
  • Explain why it is important to assume that the rate of radioactive decay aka radioactivity will remain constant over time?
    6·2 answers
  • P4O10 + 6PCl5 → 10POCl3
    8·1 answer
  • Joe is the best baseball player in the world. He can throw a baseball faster than anyone. If the mass of the baseball was increa
    10·2 answers
  • Write the nuclear equation to describe the alpha decay of 243 95 Am
    8·2 answers
  • Why is creativity Important and construction scientific methods?<br> I
    11·1 answer
  • If a 50 kg student is pushed in a rolling chair with a force of 20 N, what is the student’s acceleration?
    6·1 answer
  • 1N2 + 3H2 --&gt;
    12·1 answer
  • Q3.What did you observe about the wavelengths and frequencies of the different colors of light?
    12·1 answer
  • Draw the structure of the major nitration product from the reaction of nitric acid with 1,3‑dimethylbenzene. Show all formal cha
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!