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Alex787 [66]
3 years ago
6

Which of the following correctly describes the difference (on average) between an electron in a 2s orbital and an electron in a

3s orbital?

Chemistry
1 answer:
bulgar [2K]3 years ago
4 0

Answer:

C: electrons is the 3s orbital are higher than those in the 2s orbital

Explanation:

Looking at the options, the correct one is that the electrons in the 3s orbital will possess more energy than those in the 2s orbital. This is because the the 2s orbitals will be filled with electrons first before the 3s orbital.

Also from basics we know that the energy of an orbital increases as the quantum number increases.

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Please help I’ll give brainliest
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Use the conversion factor 1 amu = 1.66054× 10–24 g to answer the following questions. a) 1.67 x 10-24 g of neurons is how many (
sergij07 [2.7K]
You can use the mass of neuron divided by the mass of conversion factor: 1.67*10^(-25)/(1.66054*10^(-24))≈1 amu. So the answer is 1 amu. 
7 0
3 years ago
Extra points!
noname [10]

Answer:

1A

2B

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Explanation:

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3 years ago
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175.24g of strontium equals how many moles
OverLord2011 [107]
Using dimensional analysis, we can find the moles of strontium by comparing the mass of strontium to it's atomic mass.
You can find the atomic mass of Sr on the periodic table:
Atomic Mass Sr = 87.62g/mol

In case you are not familiar, dimensional analysis works like this:
(what we know) x (conversion factor) = what we are looking for

The conversion factor compares the units of what we know to the units of what we are looking for. In this case, the conversion factor is:
1 mol/87.62g

The important thing to note about the conversion factor is that you want to be able to cancel out the units of your given measurement (in this case, it is the mass)

So, our full solution will be:
moles Sr = (175.24 g)x(1 mol/87.62 g)
(cancel out the mass units)
moles Sr = 175.24 x 1 mol/87.62
= 2.00 mol Sr

Hope this helped you!
4 0
3 years ago
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