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AVprozaik [17]
3 years ago
8

Why is radon-222 considered dangerous?

Chemistry
2 answers:
Marysya12 [62]3 years ago
5 0

q1. all of these

q2 false

q3 can be in liquid, solid or gas forms

q4 idk

q5 They usually remain radioactive for less than 100 years.

q6 idk

q7 TRUE

educated guess and i remember some things from chem. Hope its all good


olga nikolaevna [1]3 years ago
4 0

Answer:

given below

Explanation:

1) correct answer is option d)

it is the second leading cause of lung cancer in USA it cannot be seen and smelled or tasted.

2) false

nuclear medicine can be used for wider variety of diseases.

3) correct answer is option d)

it is correct that radioactive element are present in liquid, solid or gas forms and it is very hazardous if they leaked and it can remain radioactive for long period of time.

4) the correct answer is option c

spent fuel are radioactive have many isotopes and is to be disposed  very carefully and it remains radioactive for less than 100 years.

5) True

Radioactivity waste should be properly disposed as it contain very hazardous material which can affect humans.

6) True

Nuclear energy is a renewable energy and it can be used as the alternative source of energy it produce less pollution.

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Explanation:

8 0
2 years ago
Need help with this.
Jobisdone [24]

Answer:

18.2 g.

Explanation:

You need to first figure out how many moles of nitrogen gas and hydrogen (gas) you have. To do this, use the molar masses of nitrogen gas and hydrogen (gas) on the periodic table. You get the following:

0.535 g. N2 and 1.984 g. H2

Then find out which reactant is the limiting one. In this case, it's N2. The amount of ammonia, then, that would be produced is 2 times the amount of moles of N2. This gives you 1.07 mol, approximately. Then multiply this by the molar mass of ammonia to find your answer of 18.2 g.

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Which is an element? ... air ...carbon dioxide ...hydrogen ...water Description
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All Elements are obtained in the periodic table & water is Not an element it is a compound.
5 0
3 years ago
Read 2 more answers
The disturbance of a supersaturated solution will cause
Flura [38]
The disturbance of a supersaturated solution will cause precipitation. A supersaturated solution is a solution that contains more solute than the solvent can dissolve. When this type of solution is disturbed like when it is moved, the formation of a solid is observed immediately.
3 0
3 years ago
What is the correct name of this compound?
Reika [66]

Answer:

7. 3–ethyl–6 –methyldecane

8. 5–ethyl–2,2–dimethyl–4–propyl–4 –heptene

Explanation:

It is important to note that when naming organic compounds having two or more different substituent groups, we simply name them alphabetically.

The name of the compound given in the question above can be written as follow:

7. Obtaining the name of the compound.

Compound contains:

I. Decane.

II. 3–ethyl.

III. 6 –methyl.

Naming alphabetically, we have

3–ethyl–6 –methyldecane

8. Obtaining the name of the compound.

Compound contains:

I. 2,2–dimethyl.

II. 4–propyl.

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IV. 5–ethyl.

Naming alphabetically, we have

5–ethyl–2,2–dimethyl–4–propyl–4 –heptene

8 0
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