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
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.

You might be interested in
Which metal is most likely to be formed easily into
Nataly [62]

Answer:

answer is gold

Explanation:

bcz gold is having a property of malleable so it can be drawn into thin sheets

5 0
3 years ago
Read 2 more answers
Why is it necessary to add concentrated HCl, then water, rather than a solution of HCl to the eudiometer tube
Dmitry_Shevchenko [17]
The reaction between concentrated acid and water can release a lot of heat. If a little water is added to a larger amount of acid, the heat can cause the small amount of water to boil very rapidly which then spatters some acid. ... It is recommended that acid should be added to water and not water to acid.
8 0
3 years ago
What is the molarity of a solution of 17.0 g of nh4br in enough h2o to make 158 ml of solution? answer in units of m?
vivado [14]
Unit of M is also mole/L, where mole is the moles of solute and L is the volume of the solution.  The latter is given: 158 mL or 0.158 L.  So we need to find out the moles of NH4Br.

Moles of NH4Br = Mass of NH4Br/molar mass of NH4Br = 17.0g/(14+1*4+79.9)g/mol = 0.1736 mole.

So, the molarity of the solution = 0.1736mole/0.158L = 1.10 mole/L = 1.10 M
6 0
3 years ago
8. which change in state is associated with the heat of vaporization,
rewona [7]
The answer is 2, liquid to vapor because vaporization is the process of liquids to vapors.
8 0
3 years ago
The whole reason things stay afloat or sink is because water is​
mars1129 [50]

Answer:

I think the density of the object determines if it floats or sinks

5 0
3 years ago
Other questions:
  • What particles do during phase changes
    10·1 answer
  • What's difference between "formula unit" and "molecule" ?
    8·1 answer
  • Name the following compounds
    8·2 answers
  • How many Al atoms are present in 2.5 moles of Al2O3
    5·1 answer
  • Carbon dioxide is a waste product from breathing. Which organ of the body, which is attached to the trachea, pushes carbon dioxi
    11·2 answers
  • Make the following conversion. 0.075 m = _____ cm 7.5 75 0.0075 0.00075
    7·1 answer
  • Complete the equation for the dissociation of CdCl 2 ( aq ) . CdCl2(aq). Omit water from the equation because it is understood t
    13·1 answer
  • PLEASE HELP?? :|<br> AS SOON AS POSSIBLE!!
    14·2 answers
  • What is the complete ionic equation of <br> 2AgNO3 (aq) + CaCl2(aq) ---&gt; 2AgCl2( (aq) + 2(NO3 )Ca
    10·1 answer
  • Can someone please check my answer??!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!