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Rufina [12.5K]
3 years ago
9

What does the symbol "E3" represent?

Chemistry
2 answers:
jenyasd209 [6]3 years ago
4 0
I believe that the answer is B.
shtirl [24]3 years ago
4 0

Answer: The energy of the electron in third energy level.

Explanation: The energy of the electrons depend on the value of n, i.e the value of principal quantum number which tells the shell of the electron.

E=\frac{-13.6Z^2}{n^2}

E= energy

Z= atomic number

n= principal quantum number

Thus E_3 represents the energy of the electron which is present in n=3.

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Organic chemistry as the the study of general properties and compositions of organic compounds.

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Answer:

The mass of a pure substance represents a specific number of pure substance 'molecules', as defined by molecular weight. The relative atomic mass (atomic weight) in grams/mole (g/mol) is the molar mass of a substance, which means it is the mass of one mole of that substance.

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To test the effectiveness of a gunpowder mixture, 1 gram was exploded under controlled STP conditions, and the reaction chamber
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1.3 × 10³ cm³

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