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Advocard [28]
4 years ago
12

1. Radioisotopes are often used in:

Chemistry
1 answer:
rusak2 [61]4 years ago
8 0
1. Radio isotopes are used in all the industries mentioned above, that is, nuclear power plants, pharmacology and agricultural studies. So the correct option is D.
2. The statement is true. Radio isotope is used in medicine mostly as a diagnostic tool to diagnose illnesses. 
3. Nuclear wastes are enclosed in lead and buried in cement casks deep underground so that the lead, cement and the earth cover will act as radiation shield. The correct option is B. 
4.This statement is false. The US has 75 different radioactive storage locations across USA.
5. This statement is false. Radioactive contamination can enter the body through inhalation, ingestion, absorption and through contact with skin or clothing materials.
6. The statement is false. Uranium fuel is not burned, it undergoes fission process. 
7. This statement is true. This is because nuclear power production has less green house effects compare to fossils fuels.
8. This statement is false. Nuclear energy is not renewable and it pollutes the environment.
9. Nuclear power plants are favoured because the power produce by them are more reliable source of energy which does not deplete the ozone layer.

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A student writes Ba²⁻ as the symbol for a barium ion. Explain what is incorrect about the symbol.
elena-14-01-66 [18.8K]
It should be 2+ because Ba is in the 2nd group which means it needs two more electrons.
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3 years ago
The diagram below represents a beaker of water being heated by a flame. The arrows represent heat
Charra [1.4K]

Answer:

condensation

Explanation:

when heated beaker sed condensation

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3 years ago
Almost all the mass of an atom is located in its?
Vinil7 [7]
Almost all the mass of an atom is located in its nucleus.
8 0
3 years ago
Identify the false statement from the following.
LUCKY_DIMON [66]

The false statement from the above is that: Temporary charge imbalances in the molecules lead to London dispersion forces.

<h3>What are the factors that affect London dispersion forces?</h3>

Generally, the factors which affects the London dispersion forces a dispersion force are as follows:

  • Shape of the molecules
  • Distance between molecules
  • Polarizability of the molecules

However, London dispersion forces simply refers to a sort of temporary attractive force formed when electrons in two adjacent atoms occupy positions that make the atoms form dipoles.

So therefore, temporary charge imbalances in the molecules lead to London dispersion forces is a false statement

Learn more about London dispersion forces:

brainly.com/question/1454795

7 0
2 years ago
The amount of kinetic energy an object has depends on itsAn object has a velocity of 8 m/s and a kinetic energy of 480 J. What i
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Answer:

1/2*m*v²

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m=32

480÷32

=15kg

6 0
4 years ago
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