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Zigmanuir [339]
2 years ago
10

How many grams of KCl (74.55 g/mol) is produced from 106 g of Cl2?

Chemistry
1 answer:
Bezzdna [24]2 years ago
8 0

Answer:

222.91g of KCl

Explanation:

First, we need to write a balanced equation for the reaction. This is illustrated below

2K + Cl2 —> 2KCl

Molar Mass of KCl = 74.55 g/mol

Mass of KCl from the balanced equation = 2 x 74.55 = 149.1g

Molar Mass of Cl2 = 2 x 35.45 = 70.9g.

From the equation,

70.9g Cl2 produced 149.1g of KCl.

Therefore, 106 g of Cl2 will produce = (106 x 149.1)/70.9 = 222.91g of KCl

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Select the correct scientist for each of the following advances in creating the modern periodic table.
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Answer:

Lavoisier; Newlands; Moseley

Explanation:

In 1789, Antoine Lavoisier grouped the elements into gases, nonmetals, metals, and earths.

In 1865, John Newlands developed the Law of Octaves. He stated that "any given element will exhibit analogous behaviour to the eighth element following it in the table."  

In 1914, Henry Moseley found a correlation between the X-ray wavelength of an element and its atomic number. He was then able to restructure the periodic table according to atomic numbers.

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3 years ago
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Answer:

Si las condiciones para que el magma permanezca líquido no perduran, el magma se enfriará y solidificará en una roca ígnea. Una roca que se enfría en el interior de la Tierra se denomina intrusiva o plutónica y su enfriamiento será muy lento, produciendo una estructura cristalina de granos grueso.

Explanation:

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3 years ago
How much heat is needed to change the temperature of 5g of water from 20 oC to 37 oC?
Dafna1 [17]

Answer:

The answer to your question is Q = 355.64 J

Explanation:

Data

Heat = Q = ?

Temperature 1 = T1 = 20°C

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Formula

Q = mCp(T2 - T1)

-Substitution

Q = (5)(4.184)(37 - 20)

-Simplification

Q = (5)(4.184)(17)

-Result

Q = 355.64 J

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Answer:

International System of Units (SI)

Explanation:

I hope it helps :)

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