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ADSORPTION: The adhesion of a liquid or gas on the surface of a solid material, forming a thin film on the surface. Not to be confused with the process of absorption.

ABSORPTION: The act or process of absorbing or of being absorbed as

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An atom of elements x has one more shell of electrons than an atom of beryllium,but h are s one less valence electron then beryl

Ilia_Sergeevich [38]

Element X is sodium.

If there is one more shell of electrons, then this means it is one period below.

Since there is one less valence electron, it is one group to the left.

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2 years ago

What do the molecules do when they gain more kinetic energy and how does that affect the density?

GREYUIT [131]

The more kinetic energy a substance has, the warmer it will be and the faster particles will be moving, which reduces the density of the substance

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3 years ago

I am an alkali metal located in the third period of the periodic table. Who am I?

Tema [17]

Answer:

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3 years ago

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LuckyWell [14K]

Answer:

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3 years ago

An aqueous solution containing 16.5 g of an unknown molecular (nonelectrolyte) compound in 106.0 g of water was found to have a

salantis [7]

Answer : The molar mass of unknown compound is 152.38 g/mole

Explanation :

Depression in freezing point = $1.9^oC$

Mass of unknown compound = 16.5 g

Mass of water = 106.0 g

Formula used :

$\Delta T_f=i\times K_f\times m\\\\\Delta T_f=i\times K_f\times\frac{\text{Mass of unknown compound}}{\text{Molar mass of unknown compound}\times \text{Mass of water in Kg}}$