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shtirl [24]
3 years ago
7

Which electron configuration represents an atom of lithium in an excited state?

Chemistry
1 answer:
creativ13 [48]3 years ago
8 0
There are many options, such as: 2-0-1, 1-1-1, 0-1-2, but they must all equal 3 electrons in total
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The molecular mass of methyl ethanoate is 75.1 amu . calculate the molecular mass of propanoic acid, an isomer of methyl ethanoa
iren [92.7K]
Molecular Formula of Propanoic Acid is....

                                                C₃H₆O₂
Where;

Atomic Mass of C  =  12

Atomic Mass of H  =  1

Atomic Mass of O  =  6

Substituting Atomic Masses in molecular formula,

                                                (12)₃ + (1)₆ + (16)₂

                                                   36  +  6  +  32

                                                        74 g/mol

Result:
            
Molecular Mass of Propanoic Acid is 74 g/mol. Structure of Methyl Ethanoate and Propanoic Acid are as follow,

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3 years ago
How did electrons gain energy in order to jump to higher energy levels?
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Explanation:

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2 years ago
A flask contains a mixture of hydrogen gas and water vapor at STP. If the pressure of the water vapor is 19.5 mmHg, then what is
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Explanation:

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