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Hatshy [7]
3 years ago
5

Which of the following is NOT an example of an insulator?

Chemistry
2 answers:
Korolek [52]3 years ago
8 0
Glass, baecase it dosent insulate, it just collects warmth or coldness.
rusak2 [61]3 years ago
7 0
So we know that a conductor is a poor insulator since it will absorb the heat and relay it to the environment.  The only good conductor above is Aluminium Foil since it is made of the metal aluminum (metals has a sea of electrons that are able to transfer heat).  As a result the answer is Option 4.

All the others will insulate since they are not able to transfer the heat because of the absence of free electrons.


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Answer:

Refer to your periodic table. Lewis dot structures are based off the number of valence electrons an atom has.

Looking at the compounds, we can see that Gallium has three valence electrons in its outer shell and oxygen has six. Oxygen and Gallium are going to share electrons with one another, making a V shape in their diagram.

One Oxygen would make a double bond with a Gallium, leaving one valence electron to another oxygen. That oxygen takes that Final electron. It now has 7 in its outer shell. The remaining Gallium and Oxygen do the same double bond as the one before, leaving the 7 valence electron oxygen with one more electron.

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