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3 years ago

7

__________ is a numerical value assigned to each element to indicate the number of electrons that might be lost, gained, or shar

ed by an atom of that element when it bonds with an ion or an atom of another element to form a compound.

1 answer:

Margaret [11]3 years ago

3 0

Answer:

oxidation number

Explanation:

Describes the degree of oxidation of an atom in a chemical compound.

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What is the most soluble salt of the following set? What is the most soluble salt of the following set?

DiKsa [7]

Answer:

(c) $AgCN\ (K_{sp} =6.0\times 10^{-17})$

Explanation:

The solubility product of a solid is the amount of solid dissociates into its respective ions in the solution. Thus more the value of the Ksp, the more is the salt soluble in the solvent.

So, Given that:-

$Sn(OH)_2\ (K_{sp} =1.6\times 10^{-19})$

$Al(OH)_3\ (K_{sp} =1.9\times 10^{-33})$

$AgCN\ (K_{sp} =6.0\times 10^{-17})$

$Fe(OH)_3\ (K_{sp} =2.6\times 10^{-39})$

The salt having highest value of Ksp is AgCN. So, it is most soluble.

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Answer:

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Explanation:

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3 years ago

How many moles of neon gas are there 25.0 L of gas or 5.0°C with a pressure of 89.9 KPa?

vladimir2022 [97]

Volume=25L
Temperature=5°C
Pressure=89.9kPa

Now

$\\ \rm\rightarrowtail PV=nRT$

$\\ \rm\rightarrowtail n=\dfrac{PV}{RT}$

$\\ \rm\rightarrowtail n=\dfrac{89.9(25)}{5R}$

$\\ \rm\rightarrowtail n=89.9(5)/R$

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2 years ago