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slava [35]
3 years ago
14

Atoms have a tendency to complete their outer energy level. This is known as _____.

Chemistry
2 answers:
Debora [2.8K]3 years ago
6 0
Atoms have a tendency to complete their outer energy level. This is known as octet rule. That is because octet refers to 8 valence electrons, making a element stable in its outer shell. 
Alina [70]3 years ago
5 0

Answer : Option C) The Octet Rule

Explanation : Atoms have a tendency to complete their outer energy level. This is known as Octet Rule.

The octet rule is a chemical rule of thumb which reflects the observation, that atoms of main-group elements tends to combine in such a way that each atom gets eight electrons in its valence shell, which gives it the same electron configuration as that of a noble gas.

In short, the tendency of an atom to fill its valence shell and attain a stable state it acquires or donates the electron is called as octet rule.

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0.25 mol of nitric acid is used to make a 0.10 M nitric acid solution. How many grams of solute was used?
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15.75 grams of HNO3 was used and dissolved in 2.5 liters of solvent, to make a 0.10 M solution

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Step 1: Data given

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Step 2: Calculate molar mass of nitric acid

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Step 3: Calculate mass of solute use

Mass HNO3 = moles HNO3 * molar mass HNO3

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Mass HNO3 = 15.75 grams

15.75 grams of HNO3 was used and dissolved in 2.5 liters of solvent, to make a 0.10 M solution

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