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Sholpan [36]
3 years ago
5

WILL GIVE FREE BRAINLIEST EVERYDAY! DO NOT look up answers!! PLEASE FOLLOW DIRECTIONS ON THIS & FUTURE QUESTIONS OR WRONG!!!

Question: What is a lewis Dot model, what is its purpose. And what are some REAL LIFE scenarios it is used in. also give me a description of where the creator is from and their name
(this all the points i have rnn pl.z help a buddy out)
Chemistry
1 answer:
Stella [2.4K]3 years ago
4 0

Answer:

What is a Lewis Dot Model?

A simplified representation of the valence shell electrons in a molecule.

What is its purpose?

To show how the electrons are arranged around individual atoms in a molecule.

What are real life examples?

The Lewis Structures helps us understand the bonding of atoms and the shapes of molecules and their chemical properties. And in real life the proteins we eat in food are the carbohydrates which is from chemical bonding, which we can learn through TLS.

Creator of Lewis Structure Facts-

Gilbert Lewis Newton and he is from Weymouth, Massachusetts

Explanation:

Hope this helps you.

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In a neutral solution, the concentration of H+ is
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Answer:

1 x 10^-7 or 7

Explanation:

pH=-log(H+)

pH+pOH=14

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Amount of liquid measured in L or Lm
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The amount of liquid is measured in L. As the unit Lm is only used when measuring the mass liquid fraction.


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Determina el grado de pureza de un marmol (CaCO3), si al descomponerse 125 g del mismo se desprenden 20 litros de dióxido de car
jarptica [38.1K]

Answer:

67.8%

Explanation:

La reacción de descomposición del CaCO₃ es:

CaCO₃ → CO₂ + CaO

<em>Donde 1 mol de CaCO₃ al descomponerse produce 1 mol de CO₂ y 1 mol de CaO.</em>

Usando la ley general de los gases, las moles de dioxido de carbono son:

PV = nRT.

<em>Donde P es presión (1atm), V es volumen (20L), n son moles de gas, R es la constante de los gases (0.082atmL/molK) y T es temperatura absoluta (15 + 273.15 = 288.15K). </em>Reemplazando los valores en la ecuación:

PV / RT = n

1atmₓ20L / 0.082atmL/molKₓ288.15K = 0.846 moles

Como 1 mol de CO₂ es producido desde 1 mol de CaCO₃, las moles iniciales de CaCO₃ son 0.846moles.

La masa molar de CaCO₃ es 100.087g/mol. Así, la masa de 0.846moles de CaCO₃ es:

0.846moles ₓ (100.087g / mol) = <em>84.7g de CaCO₃</em>

Así, la pureza del marmol es:

(84.7g de CaCO₃ / 125g) ₓ 100<em> = </em>

<h3>67.8%</h3>
7 0
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On which equation are the reactants located
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Why do you see lightning before you hear the thunder?
krok68 [10]

B,speedof light>speed of sound

8 0
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Read 2 more answers
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