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natka813 [3]
3 years ago
6

Which statement best explains why radon and krypton do not bond easily with other elements?

Chemistry
2 answers:
Brut [27]3 years ago
8 0

Answer:

They have eight electrons in their valence shells, so they are stable without gaining or losing electrons.

Explanation:

This very muched helped

goldenfox [79]3 years ago
4 0
<span>They have eight electrons in their valence shells, so they are stable without gaining or losing electrons. I hope this helps.</span>
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WORTH 20 POINTS HELP PLEASE
Damm [24]

Answer:

The answers to your questions are below

Explanation:

Physical change is when matter changes its form but is still the same substance.

Chemical change is when matter changes its composition.

iron and oxygen from rust  It's a chemical change because iron and oxygen form a new compound different from the reactants.

iron is denser brightly when ignited . This is a chemical property because iron reacts with oxygen.

oil and water do not mix it's a physical change, oil and water are in touch but they do not react.

mercury melts at -39°C it's a physical property because mercury changes from solid to liquid but it still is mercury.

5 0
3 years ago
Why do you need to remove carbon dioxide and water vapour to produce liquid air
AleksandrR [38]

Answer:

because these substances solidify when cooled and would clog the pipes of the air liquefaction plant.

7 0
3 years ago
Which characteristics are common to the three isotopes of hydrogen?
allsm [11]
D should be the correct answer.  isotopes are atoms that have the same atomic number (number of protons) but different atomic masses (number of protons and neutrons).  isotopes also have the same number of electrons since atoms need to have equal numbers of protons and electrons to not be considered ions.  Since the number of protons determines the chemical properties of the atom, we can say that all isotopes have the same chemical properties due to the fact that all isotopes have the same atomic number.

I hope this helps.  Let me know in the comments if anything is unclear.
8 0
3 years ago
Help me out u get points Select the correct answer from each drop-down menu.
kvv77 [185]

Answer:

The thermal energy is the average kinetic energy of the particles in an object.

Explanation:

Hello!

In this case, since the thermal energy is associated to the temperature and the system and its effect over the molecules in the light of their movements, we infer that the proper answer is:

"The thermal energy is the average kinetic energy of the particles in an object".

On the contrary, we consider that the internal energy is referred to the total energy of the particles in the system and the translational energy is associated to the eventual movement of the system.

Best regards!

6 0
3 years ago
Read 2 more answers
2. If I have 45 g of Carbon, to find the number of moles of carbon I would *
Sati [7]

Answer:

divide by molar mass (12.01 g)

Explanation:

To find the number of moles of the carbon, divide by molar mass (12.01 g).

The number of moles of a substance is given as;

           Number of moles  = \frac{mass}{molar mass}

To solve this problem;

  since mass of carbon  = 45g

                Number of moles  = \frac{45}{12.01}   = 3.75moles

3 0
3 years ago
Read 2 more answers
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