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aleksklad [387]
2 years ago
7

닭이 먼저냐 달걀이 먼저냐. 설명.​

Chemistry
2 answers:
k0ka [10]2 years ago
6 0

Answer:

계란은 확실히 닭보다 먼저 나왔지만 닭 계란은 그렇지 않았습니다. 그러나 진화론적 증거에 따라 절대적으로 한 편을 선택해야 한다면 우리는 팀 에그에 있습니다..

Explanation:

도움이 되었기를 바랍니다..

미리 환영합니다!!

(;ŏ﹏ŏ)(ㆁωㆁ)

docker41 [41]2 years ago
3 0

Answer:

Im not quite sure coz u can't have one without the other. But of I'm to pick a side Im team egg

Explanation:

Hope That THIS IS HELPFUL

HAVE A GREAT DAY.

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Lithium has two stable isotopes with masses of 6.01512 amu and 7.01600 amu. The average molar mass of Li is 6.941 amu. What is t
Dvinal [7]

Answer :  The percent abundance of Li isotope-1 and Li isotope-2 is, 6.94 % and 93.1 % respectively.

Explanation :

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i   .....(1)

Let the fractional abundance of Li isotope-1 be 'x' and the fractional abundance of Li isotope-2 will be '100-x'

For Li isotope-1 :

Mass of Li isotope-1 = 6.01512 amu

Fractional abundance of Li isotope-1 = x

For Li isotope-2 :

Mass of Li isotope-2 = 7.01600 amu

Fractional abundance of Li isotope-2 = 100-x

Average atomic mass of Li = 6.941 amu

Putting values in equation 1, we get:

6.941=[(6.01512\times x)+(7.01600\times (100-x))]

By solving the term 'x', we get:

x=694.048

Percent abundance of Li isotope-1 = \frac{694.048}{100}=6.94\%

Percent abundance of Li isotope-2 = 100 - x = 100-6.94 = 93.1 %

6 0
2 years ago
8. Carbohydrates on cell membranes help cells
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Answer:

A

Explanation:

5 0
3 years ago
In a Lewis structure, why must pairs of unshared of lone pairs if dots be placed around the outside of some of the atoms
Maksim231197 [3]

Answer:

In a Lewis symbol, the symbol for the element is used to represent the atom and its core electrons. Dots placed around the atom are used to indicate the valence electrons. ... In 1916, Gilbert Newton Lewis, an American chemist, suggested that molecules were formed when atoms shared pairs of outer electrons.

Explanation:

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<h3>  adolescence begins according to your diet</h3>

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