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2 years ago

The lewis dot structure rule states that

Chemistry

1 answer:

Rama09 [41]2 years ago

3 0

Answer:

Explanation:

The total valence electron is available for the Silicon tetrachloride

lewis structure is 32

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A chemistry teacher carried out several demonstrations, and students recorded their observations. For one of the demonstrations,

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3 years ago

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Why are x-rays telescopes and gamma-ray telescopes in space?

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3 years ago

What does the rf value describe on a microscopic level why is this important?

lys-0071 [83]

Answer: The retention factor describes the rate at which a compound migrates on a microscopic level.

The retention factor (Value) serves as a simple measurement of the relative binding of the compound of interest under the experimental conditions.

Retention factor values are used in identification purposes;

• Use to determine the affinity of the solute to the solvent

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Explanation:

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3 years ago

silicon, tin, and lead are all in the same group. the density of tin is about 7.28 g/cm3 and the density of lead is about 11.34

Sophie [7]

The atom's radius and mass increase from top to bottom. The density of elements from top to bottom also increases in a periodic table.

Density of Sn= Mass of Sn/Volume of Sn

=24.3968/7.28

=3.49 g/ml*ml/cm³

=3.49 g/cm³

It is accurate to assume that the density of Sn will fall between that of Si and lead . the mass number and radius of the atoms increase from group to group as we move from top to bottom in a periodic table.. The density rises because the increase in mass number is greater than the increase in radius. Simply multiplying by the molar mass of the gas allows one to derive the formula for mass density from the formula for number density. Do not forget that the mass is equal to the moles (n) times the molar mass (M). Smaller masses can be measured in grams instead of kilograms (kg), which is the standard SI unit for mass.

To learn more about density please visit:

brainly.com/question/406690

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1 year ago

Why does a plant have a cell wall and a cell membrane? ASAP Pls have to turn it in at 11:00pm

Aleonysh [2.5K]

Answer:

The cell wall surrounds the plasma membrane and provides the cell tensile strength and protection. ... The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress.

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3 years ago