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
lora16 [44]
3 years ago
13

PLS HELP ASAP NO LINKS WILL MARK BRAINLIEST IF CORRECT

Chemistry
2 answers:
patriot [66]3 years ago
6 0

Answer: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.

Explanation:

Alex777 [14]3 years ago
4 0

Answer:

10,000

Explanation:All toxic waste needs to be dealt with safely, not just radioactive waste. The radioactivity of nuclear waste naturally decays, and has a finite radiotoxic lifetime. Within a period of 10,000 years, the radioactivity of HLW decays to that of the originally mined ore. Its hazard then depends on how concentrated it is.

You might be interested in
Importance of pH value in daily life
olganol [36]
Plants require pH to thrive which in turn gives us food.
8 0
3 years ago
What is the density of a liquid if it's volume is 125 mL and it's mass is 50g?
masha68 [24]

Answer:

0.4g/ml

Explanation:

density= mass/volume

density=50g/125ml

density=0.4g/ml

6 0
3 years ago
What is heat
Nimfa-mama [501]

Answer:

energy that freely moves from one place to another. It is responsible for vibration of particles of matter

8 0
3 years ago
In what two ways can an object possess energy?
-BARSIC- [3]

Explanation:

An object can possess energy in tow ways by it's motion or position

5 0
3 years ago
Answer this question:
almond37 [142]

Answer:

Meteorologists look at data help from the computer about temperature, pressure, humidity, and wind speed, among many other data points to try and accurately predict the weather.

5 0
2 years ago
Other questions:
  • Explain why it is not possible to draw a skeletal structure for methane.
    13·1 answer
  • In the periodic table, the elements are organized into groups based on
    6·1 answer
  • You want to minimize an objects thermal energy loss on a cold day. How does heat energy transfer affect thermal energy loss?
    8·1 answer
  • The mass of a single gold atom is 3.27×10-22 grams. How many gold atoms would there be in 43.2 milligrams of gold?
    15·1 answer
  • Naturally occurring magnesium has an atomic mass of 24.312 and consists of three isotopes. The major isotope is Mg24, natural ab
    10·1 answer
  • James is preparing three solutions of salt water. Each of the solutions has the same amount of water in the beaker and a differe
    5·2 answers
  • A roller coaster starts down a hill at 10 m/s. Three seconds later, its speed is 32 m/s. What is the roller coaster’s accelerati
    15·1 answer
  • A certain liquid sample has a volume of 14.7 mL and a mass of 22.8 grams. Calculate the density.
    8·1 answer
  • What happen when the nitrate of an alkali metal is heatad?<br>​
    9·2 answers
  • How many atoms of Pb are there?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!