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Elodia [21]
3 years ago
7

Which atomic model propose that electrons move in specific orbits around the nucleus of an atom

Chemistry
1 answer:
tamaranim1 [39]3 years ago
5 0

Answer: Bohr's

Explanation:

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What is the concentration in milligrams per milliter of a solution containing 23.5 meq sodium chlorise per milliliter? mw nacl =
ValentinkaMS [17]

1374.75 is the concentration in milligrams per ml of a solution containing 23.5 meq sodium chloride per milliliter.

Concentration in chemistry is calculated by dividing a constituent's abundance by the mixture's total volume.

It is calculated in mg/ml.

The unit of measurement frequently used for electrolytes is the milliequivalent (mEq). This value compares an element's chemical activity, or combining power, to that of 1 mg of hydrogen.

Formula for calculating concentration in mg/ml is

Conc. (mg/ml) = M(eq) /ml ×  Molecular weight / Valency

Given

M(eq) NaCl/ ml = 23.5

Molecular weight pf NaCl = 58.5 g/mol

Valency = 1

Putting the values into the formula

Conc. (mg/ml) = 23.5 ×58.5/1

                       = 1374.75 mg/ml

Hence, 1374.75 is the concentration in milligrams per ml of a solution containing 23.5 meq sodium chloride per milliliter.

Learn more about Concentration here brainly.com/question/14500335

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7 0
2 years ago
Which of these is an example of a metaphor?
emmainna [20.7K]

Answer:

a i think

Explanation:

because it was the only one that compared something to another

5 0
3 years ago
¿Cuáles son ejemplos de elementos químicos que pertenecen al grupo de los gases nobles o gases raros?
Aliun [14]

Answer:

traducir al español esa es la respuesta

自分の仕事をする

Explanation:

5 0
3 years ago
Consider the following reversible reaction.
Marina86 [1]

Answer:

B is the correct option

Explanation:

K= the ratio of product of concentration of products to the product of concentration of reactants raised to power equal to their cofficients.

7 0
3 years ago
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What happens to the energy of the universe during a chemical or physical process
yulyashka [42]

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unchanged

Explanation:

In any chemical of physical process, energy is neither created nor destroyed. A process that absorbs the heat from the surroundings. ... What happens to the energy of the universe during a chemical or physical process? During any chemical or physical process, the energy of the universe remains unchanged.

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3 years ago
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