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Minchanka [31]
3 years ago
14

Unscramble dreor to get a science answer

Chemistry
2 answers:
Sveta_85 [38]3 years ago
8 0
That word would be 
>>>>
>>>>>>ORDER
lesantik [10]3 years ago
5 0
Order. 
Hope this helps! :)
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A sample of water at 100°C is converted to steam after absorbing 820 kJ of heat. How grams of H2O are contained in the sample? A
Varvara68 [4.7K]
Since water is already at 100<span>°C all the energy is used to evaporate it. 
Now we can calculate how many </span>mols of water are evaporated with 820kJ.
N= \frac{820}{41} =20 mol
We calculated that we got 20 mols of water evaporated. Now, all we have to do is find how many grams is a mol of water. Molar mass of water is <span>20.16 g/mol.
</span>The final answer is:
m=20*20.16=403.2g




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3 years ago
Is the continental crust less dense or more dense ?
zheka24 [161]

Answer:

It is less dense. It is also less dense than the oceanic crust.

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C. identify a set of four possible quantum numbers for the circled electron in manganese (mn). (there is more than one correct a
steposvetlana [31]
Although you have not provided the circled electron, I can help you with a wide explanation.

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2) Those 25 electrons are distributed (electron configuration) as per the quantum rules:

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁵

3) The most reasonable is that you have been asked to give the possible quantum numbers for an electron in the 4s or 3d.

4) Those are 7 electrons and these are their possible sets of quantum numbers:
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l tells the kind of orbital, which is s, so l = 0
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ii) For the 5 electrons in 3d

n = 3
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if l = 0, then ml = 0

if l = 1, then ml can be -1, 0 , or 1 (from - l to + l)


ms can be either +1/2 or - 1/2 (spin)
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The p sublevel holds 6 electrons because it has 3 orbitals.
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What happens when the kinetic energy of molecules increases so much that electrons are released by the atoms, creating a swirlin
iogann1982 [59]
The answer is d in this case


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3 years ago
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