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vivado [14]
3 years ago
13

Which statement is true? Nuclear power plants require more fuel than conventional power plants. There is a short supply of high

quality uranium. Nuclear power is a nonrenewable energy source. It is difficult to responsibly dispose of nuclear waste products.
Chemistry
2 answers:
Svetach [21]3 years ago
5 0

Answer is: It is difficult to responsibly dispose of nuclear waste products.

Nuclear (radioactive) waste is hazardous to all forms of life and the environment.

Long term storage of radioactive waste is needed. It is important the stabilization of the waste into a form which will neither react nor degrade over many years.

If nuclear waste is wasted in atmosphere or into oceans and lagre lakes, eventually it will come in contact with living organisms.

Best way to storage nuclear waste is encasing nuclear waste in containers that are then taken to remote locations.

Bas_tet [7]3 years ago
3 0
I believe the correct answer would be option 4. The only statement that is true would be that it is difficult to responsibly dispose of nuclear waste products. This is because nuclear waste products are radioactive and are very harmful to the society and to the environment. It could cause serious damage to every being in contact to it.
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If all three metals were exposed to extremely high temperatures, which would be the last to melt? (copper, gold, mercury)
Harlamova29_29 [7]

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I believe its Gold

Explanation:

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DETERMINE THE MOL OF WATER NEEDED TO REACT WITH1.5 MOL OF NITROGEN DIOXIDE. 3NO2+ H20→ 2HNO3 + NO
dexar [7]

Answer: 0.5 mol h2o

Explanation: Hope this help :D

8 0
3 years ago
In Period 2, as the elements are considered from left to
Elza [17]

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5 0
3 years ago
Which of the following naturally orccuing radioisotopes would be most useful in dating objects
Sergeu [11.5K]
Potassium -40half life = 1.28 ×10∧9.
Radioisotope can be used to determine the age of fossils, to treat skin disease, to sterilize foodstuffs, and also to sterilize surgical instruments.
Radioisotope dating is a way to estimate a fossil's age by a method of analyzing the elemental isotopes which are within the rocks which it is in.
3 0
3 years ago
Propane fuel (C3H8) is burned with 30 percent excess air. Determine the mole fractions of each of the products. Also, calculate
elena-14-01-66 [18.8K]

Answer:mole fraction of carbon dioxide = 0.429;  

mole fraction of water= 0.571

Mass of water in the products = 1.635g

Explanation:

The process of burning an hydrocarbon(example:propane) in air is called combustion. This reactions yields carbon dioxide, water and heat. With this information, we can generate a balanced equation of reaction as below:

C₃H₈ + 5O₂ ↔ 3CO₂ + 4H₂O

Note that there is 30% excess air. This means that there is enough oxgen to burn all the propane available. Thus it is a complete combustion process.

Mole fraction = number of moles/ total number of moles of the solution

Number of moles of C0₂= 3

Number of moles of H₂O= 4

Mole fraction of CO₂= 3/3+4= 3/7= 0.429

Mole fraction of H₂O= 4/3+4=4/7= 0.571

To calculate the mass of water in the products

Molar mass of C₃H₈= (3*12.011)+ (8*15.999)=44.067g

1mole of C₃H₈= 44.067g

using a unit mass of the fuel(propane)= 1g,

Therefore 1g of C₃H₈= 1/44.067= 0.02269moles

Looking at the equation of reaction, 1mole of C₃H₈ yields 4moles of water,

Therefore 0.02269moles of C₃H₈ will yield:

0.02269*4= 1.635g of H₂O

6 0
4 years ago
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