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vesna_86 [32]
3 years ago
13

Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. fo

r example, [he]2s22p2should be entered as [he]2s^22p^2.
Chemistry
1 answer:
alex41 [277]3 years ago
4 0
There are 6 elements that are given and these are:Nickel, Selenium, Cadmium, Uranium, Lead, and Cesium. These are their condensed electronic configuration.
Ni – [Ar] 4s2 3d8Se – [Ar] 4s2 3d10 4p4Cd – [Kr] 5s2 4d10U – [Rn] 7s2 5f4Pb – [Xe] 6s2 4f14 5d10 6p2CS – [Xe] 6s1
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4. Define oxidation and reduction in terms of the gain or loss of electrons.
Andreyy89

\mathbb\color{cyan}{\tiny A\scriptsize N\small S\large W\Large E\huge R}

  • Oxidation is loss of electrons, gain of oxygen or loss of hydrogen.
  • Reduction is gain of electrons, loss of oxygen or gain or hydrogen.
3 0
2 years ago
What causes the changes in air pressure on the earth surface
Fudgin [204]
<span>Atmospheric Pressure</span>
5 0
3 years ago
What elements react the most? Like have the most reactivity.
Vera_Pavlovna [14]

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3 years ago
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makkiz [27]
It’s b) Phototropism
4 0
3 years ago
Read 2 more answers
One method for preparing pure iron from Fe2O3 is by reaction with carbon monoxide.Fe2O3(s)+CO(g)→Fe(s)+CO2(g) How many moles of
larisa [96]

Answer:

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

Explanation:

Given data:

Mass of Fe₂O₃ = 122 Kg ( 122×1000 =  122000 g)

Moles of CO = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO  → 2Fe + 3CO₂

Number of moles of  Fe₂O₃:

Number of moles = mass/ molar mass

Number of moles = 122000 g /159.69 g/mol

Number of moles = 764 mol

Now we will compare the moles of Fe₂O₃ with CO.

                               Fe₂O₃            :            CO  

                                  1                  :             3

                               764                :             3×764  =2292 mol

The 2292 moles of CO are needed to react completely with 122 Kg of Fe₂O₃.

6 0
3 years ago
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