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(Answered)-P lease select the correct answer and give me a short


Please select the correct answer and give me a short explailation on why its the correct answer

Which of the following statements describes a polar molecule?

Question options:
1)? The electrons in the molecule are distributed evenly throughout the molecule.
2)? The molecules are usually not attracted to one another very strongly.
3)? Polar molecules have the weakest intermolecular interactions with ionic compounds.
4)? The molecules have a high degree of symmetry.
5)? None of these statements describe polar molecules.


Question 3 0 / 2 points


polar molecule has a positive and a negative side or end.

Question options:
1)?

True

2)?

False


Question 4 0 / 2 points


The structure of the water molecule explains the following properties of water EXCEPT its:

Question options:
1)? density
2)? specific heat
3)? latent heat of vaporization
4)? color


Question 6 0.5 / 2 points


Which of the following are basic? (check all that apply)

Question options:
1)?

Sodium Hydroxide

2)?

Vinegar

3)?

Carbonated beverages

4)?

Drain cleaners

5)?

Ammonia

6)?

Antacid

7)?

Sauerkraut

8)?

Sour Milk


Chapter 11


Question 10 0 / 2 points


Natural radioactivity is a result of

Question options:
1)?

unstable isotopes in the ground, building materials, food, and cosmic rays

2)?

experiments with human-made elements.

3)?

absorption of any type of radiation by very heavy elements.

4)?

a mass defect of the nucleus.


Question 11 0 / 2 points


The amount of radiation we are naturally exposed to during a year is nearly


Question options:
1)?

150 rem.

2)?

100 rem.

3)?

1 rem.

4)?

<1 millirem


Question 15 0 / 2 points


Which of the following is most likely to happen to a beta particle after it is emitted?

Question options:
1)?

It escapes to space, where it is known as a cosmic ray.

2)?

After being absorbed by matter it is dissipated as radiant energy.

3)?

It may join an ion to become part of an atom, or it may remain a free electron.

4)?

It joins others of its kind to make lightning and thunder.


 


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DATE ANSWERED

Oct 07, 2020

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