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jek_recluse [69]
3 years ago
5

I just need help plz!

Chemistry
1 answer:
Nesterboy [21]3 years ago
4 0

Answer:

<u>Graphene</u> is a nanomaterial that is often used with other compounds to desalinate and decontaminate water.

The electrical behavior of semiconductor devices and electronics can be engineered using a process called <u>Doping</u>

Explanation:

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What is light?
labwork [276]
A wave of vibrating electric and magnetic energy

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4 years ago
4. Arrange the following substances in order of increasing boiling point: CH3CH2OH, HOCH2CH2OH, CH3CH2Cl , and ClCH2CH2OH A. CH3
Studentka2010 [4]

Answer: Option (B) is the correct answer.

Explanation:

A molecules that will have more number of hydrogen bonding will has highest boiling point because to break the hydrogen bonds high heat needs to be provided.

So, in the molecule HOCH_{2}CH_{2}OH there is presence of two alcoholic groups. Hence, it will have strongest hydrogen bonding as compared to the rest of molecules.

In the molecule ClCH_{2}CH_{2}OH there will be hydrogen bonding and dipole-dipole interactions. Hence, it boiling point will be slightly less than HOCH_{2}CH_{2}OH.

In the molecule CH_{3}CH_{2}OH, there will be only hydrogen bonding. Hence, its boiling point is less than ClCH_{2}CH_{2}OH.

In the molecule CH_{3}CH_{2}Cl, there is no hydrogen bonding but there will be only dipole-dipole interactions. Hence, its boiling point will be the least.

Therefore, we can conclude that increasing order of boiling point will be as follows.

        CH_{3}CH_{2}Cl < CH_{3}CH_{2}OH < ClCH_{2}CH_{2}OH < HOCH_{2}CH_{2}OH

6 0
3 years ago
Draw a Lewis dot structure of the bonds between atoms in a molecule of this product. Use a - (dash) to represent a bonding pair.
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Ensure O has stable octet configuration

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What is a metal replacement reaction
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How many orbitlas does potassium have.
pychu [463]

Answer:

<h3><em /></h3><h3><em>Please make sure to re-write this so your teacher doesn't think your cheating!</em></h3>

Explanation:

To write the Potassium electron configuration, we first need to know the number of electrons for the K atom (there are 19 electrons). When we write the configuration we'll put all 29 electrons in orbitals around the nucleus of the Potassium atom.  

7 0
3 years ago
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