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4 years ago

Why is the outermost shell of an atom significant?

Chemistry

1 answer:

Gala2k [10]4 years ago

7 0

Answer:

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons

Explanation:

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Convert 4.500000000 to scientific notation

aniked [119]

I think it’s 4.5 x 10^9

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3 years ago

Rusting of iron is a very common chemical reaction. It results in one form from Fe reacting with oxygen gas to produce iron (III

Vlada [557]

<u>Answer:</u> The given amount of iron reacts with 9.0 moles of $O_2$ and produce 6.0 moles of $Fe_2O_3$

<u>Explanation:</u>

We are given:

Moles of iron = 12.0 moles

The chemical equation for the rusting of iron follows:

$4Fe+3O_2\rightarrow 2Fe_2O_3$

<u>For oxygen gas:</u>

By Stoichiometry of the reaction:

4 moles of iron reacts with 3 moles of oxygen gas

So, 12.0 moles of iron will react with = $\frac{3}{4}\times 12.0=9.0mol$ of oxygen gas

<u>For iron (III) oxide:</u>

By Stoichiometry of the reaction:

4 moles of iron produces 2 moles of iron (III) oxide

So, 12.0 moles of iron will produce = $\frac{2}{4}\times 12.0=6.0mol$ of iron (III) oxide

Hence, the given amount of iron reacts with 9.0 moles of $O_2$ and produce 6.0 moles of $Fe_2O_3$

5 0

3 years ago

What element has 2 occupied principals of energy levels

DerKrebs [107]

Helium i believe is the answer

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3 years ago

In humans, glucose may be the product of chemical digestion when what kinds of foods are eaten? A) carbohydrates like bread B) f

forsale [732]

<h3>Answer:</h3>

Carbohydrates like bread

<h3>Explanation:</h3>

Chemical digestion involves the breakdown of food molecules by the use of enzymes to generate simpler molecules that can be absorbed into the body's metabolism.
During chemical digestion, carbohydrates are broken down into simple molecules such as glucose which can be easily absorbed in the small intestines.
Monosaccharides such as glucose are the building blocks of carbohydrates and can be easily absorbed by the body through the small intestines.
Proteins are broken down into amino acids while lipids are broken down into fatty acid and glycerol during chemical digestion.

4 0

4 years ago

krok68 [10]

Answer:

B! SPIRAL CAUSE ITS SPINNY AND PRETTY UWUUUUUU hehe :3

5 0

3 years ago