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3 years ago

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Electron configuration

1 answer:

Schach [20]3 years ago

8 0

Answer:

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. This is also useful for describing the chemical bonds that hold atoms together.

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(a) calculate the molarity of a solution made by dissolving 0.0815 mol na2so4 in enough water to form exactly 550. ml of solutio

Vesna [10]

You just need to convert it into moles per Liter (mol/L).

0.0815mol / 0.550L = 0.148mol/L

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3 years ago

Five more than two times the square root of a number is fifteen. What’s the number

ryzh [129]

The number is 25. The square root of 25 is 5 and 5x2 is 10 and then 10+5 is 15

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3 years ago

Read 2 more answers

In a study of the following reaction at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0

sp2606 [1]

Answer:

The value of $K_p$ for this reaction at 1200 K is 4.066.

Explanation:

Partial pressure of water vapor at equilibrium = $p^o_{H_2O}=15.0 Torr$

Partial pressure of hydrogen gas at equilibrium = $p^o_{H_2}=?$

Total pressure of the system at equilibrium P = 36.3 Torr

Applying Dalton's law of partial pressure to determine the partial pressure of hydrogen gas at equilibrium:

$P=p^o_{H_2O}+p^o_{H_2}$

$p^o_{H_2}=P-p^o_{H_2O}=36.3 Torr- 15.0 Torr = 21.3 Torr$

$3 Fe(s) 4 H_2O(g)\rightleftharpoons Fe_3O_4(s) 4 H_2(g)$

The expression of $K_p$ is given by:

$K_p=\frac{(p^o_{H_2})^4}{(p^o_{H_2O})^4}$

$K_p=\frac{(21.3 Torr)^4}{(15.0 Torr)^4}=4.066$

The value of $K_p$ for this reaction at 1200 K is 4.066.

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3 years ago

How scientists used the scientific method to learn more about how dinosaurs became extinct

lesya [120]

Answer:

they tested the bone age

Explanation:

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2 years ago

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aliya0001 [1]

Answer:

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Explanation:

TOLD EM F*&*& 12 F*(&*(& SWAT

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3 years ago