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Dominik [7]
3 years ago
14

Which of these lists the energies of the sublevels, from highest to lowest? A. f > d > p > s B. d > p > s > f

C. s > p > d > f D. d > f > s > p
Chemistry
2 answers:
ivann1987 [24]3 years ago
7 0

Answer is: A. f > d > p > s.

Aufbau principle is a scheme used to reproduce the electron configurations of the ground states of atoms by successively filling subshells (orbitals) with electrons in a specific order.

Filling subshells in the following order: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f.

The azimuthal quantum number (l) determines its orbital angular momentum and describes the shape of the orbital.  

s-orbitals (for example 1s, 2s) are spherically symmetric around the nucleus of the atom.  

p-orbitals are dumb-bell shaped. l = 0,1...n-1, when l = 1, that is p subshell.  

d-orbitals are butterfly shaped.  

f-orbitals are similar to the d orbital, but cut in half (eight lobes instead of four).

Pie3 years ago
4 0
A because for example in n=4 we have all of these sub levels  4s is completed sooner than 4p and so
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What is the solubility of MgCO₃ in a solution that contains 0.080 M Mg²⁺ ions? (Ksp of MgCO₃ is 3.5 × 10⁻⁸)
Alchen [17]

Answer: 4.4 x 10^-7

Explanation:

The dissociation equation for this reaction is:

MgCO3 (s) → Mg+2 (aq) + CO3-2 (aq)

\text { So, } k_{s p}=(x+0.08) x (Here 0.08 >>> x )

\begin{aligned}\Rightarrow 3.5 \times 10^{-8} &=0.08 \times x \\\Rightarrow x &=\frac{3.5}{0.08} \times 10^{-8} \\&=4.37 \times 10^{-7} \\\Rightarrow x & \approx 4.4 \times 10^{-7} \mathrm{~M}\end{aligned}

So the solubility MgCO₃ in a solution that containing 0.080 M Mg²⁺ is 4.4 x 10^-7

7 0
2 years ago
If 7.25g of chlorine is reacted with excess hydrogen and produces 7.25 g HCl. What is the percent yield?
lozanna [386]

Answer:

94.61 %

Explanation:

percent yield = (actual yield / theoretical yield) X 100%

The balanced equation for the reaction is:

H2 (g ) + Cl2(g) => 2 HCl (l)

So, the theoretical yield =  

 7.25g of chlorine X (2mol of Cl / 35.453 g of Cl) X (2mol Cl / 2mol of HCl) X  37.469g of Hcl / 2mol of Hcl = 0.409 x 18.735 = 7.663g of Hcl

Using this theoretical yield and the provided value for actual yield, the percent yield = (actual yield / theoretical yield) X 100%

= (7.25 g / 7.663g) X 100

= 94.61 %

   

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Determine the boiling point of water at 620 mm Hg?
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7 0
3 years ago
Read 2 more answers
Match the atoms to their correct electron configuration. <br> (Answer choices in photo)
zysi [14]

Answer:

The answer to your questions are given below

Explanation:

The answer to the questions given above can simply be obtained by writing the electronic configuration of each atom.

The electronic configuration of each atoms can be written as follow:

Fluorine, F (9) => 1s² 2s²2p⁵

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6 0
3 years ago
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