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3 years ago

What is a subshell? explain why is it important.

Chemistry

1 answer:

netineya [11]3 years ago

3 0

a subshell is a subdivision of electron shells seperated by electron orbitals

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A Proton is positively (+1) charged particle and the mass 1.6727 x 10-^24 g

AVprozaik [17]

The sub-atomic particles of an atom are the proton, electron and the neutron. An electron has a charge of -1 and a smaller mass than a proton. Proton has the same mass with the neutron. The ratio between the mass of a proton and an electron is about 2000. An electron has an equal value but negative charge with the proton.

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3 years ago

The sodium atom loses an electron to form a sodium ion (Na+). Which statement is correct with respect to its atomic radius? A. T

maw [93]

Answer:B. The sodium ion has a smaller radius than the atom.

Explanation:

Because size of cation is less than neutral atom

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3 years ago

Javier and Jessica are measuring the water temperature of a stream. Javier records the water temperature at 56°. Jessica tests t

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Answer I'm not quite sure if this is right, but maybe it's because Jessica put her thermometer deeper in the stream, and Javier put his more up.

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4 years ago

Given a unsorted list of 1024 elements, what is the runtime for linear search if the search key is less than all elements in the

ra1l [238]

Answer:

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3 years ago

A titration process is done by using 0.2M of 20 ml of third analytical group main reagent solution with 0.1 M nitric acid soluti

Pavel [41]

Sulfuric acid undergoes dissociation reaction to produce twice the amount

of hydrogen ions produced by nitric acid in solution.

The volume of sulfuric acid equals; <u>Half the volume of nitric acid</u>

Reasons:

The concentration of the analytical group = 0.2 M

Volume of reagent = 20 ml

Concentration of the nitric acid to be replaced = 0.1 M

Replacement for the nitric acid = Sulfuric acid

Concentration of the sulfuric acid = Concentration of the nitric acid = 0.1 M

Reaction = Titration

Solution:

Sulfuric acid in solution gives; H₂SO₄ (aq) ⇄ 2H⁺ (aq) + SO₄²⁻(aq)

For nitric acid, we have; HNO₃ (aq) ⇄ H⁺(aq) + NO₃⁻(aq)

Therefore;

1 mole of sulfuric acid gives 2 moles of hydrogen ions

0.1 M solution of sulfuric acid gives 0.2 moles of hydrogen ions per liter

0.1 moles of hydrogen ions are therefore present in half a liter solution of 0.1 M sulfuric acid solution.

However;

0.1 M of nitric acid gives 0.1 moles of hydrogen ions per liter

Therefore;

The volume of sulfuric acid required = <u>Half the volume of nitric acid</u>

Learn more about titration and quantitative chemical analysis here:

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2 years ago