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Studentka2010 [4]
3 years ago
7

Can someone please help me please?

Chemistry
2 answers:
vekshin13 years ago
7 0

Answer:

The sum of the molar masses of each isotope of the element.

Ludmilka [50]3 years ago
6 0

Answer:

The average atomic mass (sometimes called atomic weight) of an element is the weighted average mass of the atoms in a naturally occurring sample of the element.

Explanation:

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Which elements do not strictly follow the octet rule when they appear in the Lewis structure of a molecule?
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Thee question is incomplete; the complete question is;

Which elements do not strictly follow the octet rule when they appear in the Lewis structure of a molecule?

Select one or more:

A: Chlorine

B: Carbon

C: Hydrogen

D: Sulfur

E: Fluorine

F: Oxygen

Answer:

chlorine

sulphur

Explanation:

The octet rule states that, for  atoms to be stable, they must have eight electrons on their outermost shells.

This rule is not strictly followed  by some elements such as sulphur and chlorine. The atoms of these elements can sometimes expand their octet by utilizing the d-orbitals found in the third principal energy level and beyond.

These leads to formation of compounds in which the central atom has more than eight electrons in its outermost shell.

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1. Which population of organisms depends on eating another population of organisms for
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Answer:

predation

Explanation:

Predation An interaction in which one organism kills another for food. Prey An organism that is killed and eaten by another organism.

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The disease that affects our lungs is
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Lung cancer

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4 0
3 years ago
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12. Draw an energy curve for a chemical reaction that begins at 30 kj and has an activation energy of
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Answer:

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(URGENT FOR BRAINLIEST!!)
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