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expeople1 [14]
3 years ago
12

Why is the outermost shell of an atom significant?

Chemistry
1 answer:
Gala2k [10]3 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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write an apology letter to your principal telling him why you were not in the mathematics competition.in 4000 words​
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3 years ago
How many molecules are in 30 liters of methane (CH4) at STP?
mylen [45]

Hello!

How many molecules are in 30 liters of methane (CH4) at STP ?

We have the following information:

Knowing that by Avogadro's Law for each mole of substance we have 6.02 * 10²³ molecules, it is known that in STP (Standard Temperature and Pressure) one mole of any gas equals 22.4 L, then:

22.4 L ----------------- 6.02*10²³ molecules

30 L -------------------- y molecules

\dfrac{22.4}{30} = \dfrac{6.02*10^{23}}{y}

multiply the means by the extremes

22.4*y = 30*6.02*10^{23}

22.4*y = 1.806*10^{25}

y = \dfrac{1.806*10^{25}}{22.4}

\boxed{\boxed{y = 8.0625*10^{23}\:molecules}}\:\:\:\:\:\:\bf\green{\checkmark}

Answer:

8.0625*10²³ molecules of methane

________________________  

\bf\green{I\:Hope\:this\:helps,\:greetings ...\:Dexteright02!}\:\:\ddot{\smile}

4 0
2 years ago
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