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IgorLugansk [536]
3 years ago
9

Which orbitals are completely filled in the neon and argon configurations?

Chemistry
1 answer:
VMariaS [17]3 years ago
8 0

Answer:

Argon has three electron shells. The third shell is filled with eight electrons. That is why it does not easily combine with other elements.

Explanation:

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_________ is the best way to improve the heating and cooling efficiency of your home.
Anon25 [30]
The correct option is B.
Insulating the attic and the walls will regulates the rate at which the house absorb heat from the heater and at the same time it will regulates the rate at which the heat is lost when the heater is not on. Thus, installing an insulator will help improve the heating and the cooling of the house.
4 0
3 years ago
For the reaction 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g), what volume of a 0.945 M solution of FeCl2 is required to react comp
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Answer:

0.01M

Explanation:

Given paramters:

Volume of FeCl₂ = ?

Concentration = 0.945M

Number of molecules of O₂ = 4.32 x 10²¹molecules

Solution:

The balanced reaction equation is given below:

           4FeCl₂ + 3O₂ → 2Fe₂O₃ + 4Cl₂

Now, to solve the problem we use mole relationship between the compounds.

We work from the known to the unknown compounds. Here, the known is the oxygen gas because from the given parameters we can estimate the number of moles of the reacting gas.

  number of moles of O₂ = \frac{number of elementary of particles}{6.02 x 10^{23}}

number of moles of O₂ =  \frac{4.32 x 10^{21}}{6.02 x 10^{23}}

number of moles of O₂ = 0.007mole

now, from the reaction equation we find the number of moles of the FeCl₂:

   3 mole of O₂ reacted with 4 moles of FeCl₂

0.007mole of O₂ reacted with \frac{4 x 0.007}{3} = 0.0096mole O₂

Now to find the volume of FeCl₂ we use the expression below;

       volume of FeCl₂ = \frac{number of moles}{concentration}

                                   =  \frac{0.0096}{0.945}

                                    = 0.01L

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3 years ago
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Baking powder being CO2

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4 years ago
Help me with this question!!
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Nitrogen is ...19.7
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The isotope of an atom containing 31 protons and 39 neutrons suddenly has 2 neutrons added to it. What isotope is created?
Hunter-Best [27]

<em>Answer,</em>

<em>A. Gallium-72</em>


<u><em>Hope this helps :-)</em></u>



6 0
4 years ago
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