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Alex73 [517]
3 years ago
15

Classify each of the following elements as

Chemistry
2 answers:
sweet [91]3 years ago
6 0

The non-metals are boron and carbon. The metal is aluminum and the metalloid is silicon.

Explanation:

non-metal = boron, carbon

metal = aluminum

metalloid = silicon

tino4ka555 [31]3 years ago
5 0

Answer:Silicon is neither metal nor non-metal; it's a metalloid, an element that falls somewhere between the two. The category of metalloid is something of a gray area, with no firm definition of what fits the bill, but metalloids generally have properties of both metals and non-metals.

Explanation:

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3 years ago
Explain why beryllium is produced when potassium is heated with beryllium
Vladimir [108]

Explanation:

The more reactive element replaces less reactive element during chemical reaction.

Since, potassium is more reactive than beryllium. When potassium reacts with beryllium choride, it replaces beryllium and forms potassium chloride and produces beryllium.

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2 years ago
Which is the correct definition of density
xxTIMURxx [149]
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3 years ago
The energy released from 1 gram of uranium is more than 1 million times greater than the energy released from 3 grams of coal. T
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The energy released from 1 gram of uranium is more than 1 million times greater than the energy released from 3 grams of coal is True.

<u>Explanation:</u>

Nuclear Fission is the process in which splitting of a nucleus takes place that releases free neutrons and lighter nuclei. The fission of heavy elements like "Uranium is highly exothermic" and releases "200 million eV" compared to the energy that is released by burning coal which gives a few eV.

In the given example, it is obvious that the energy released from 1 gram of uranium is more than that of the energy released from 3 grams of coal because the amount of energy released during nuclear fission is millions of times more efficient per mass than that of coal considering only \frac{1}{10}^{th} part of the original nuclei is converted to energy.

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3 years ago
Can liquid CO2 exist on Earth? Why or Why not ?
Zanzabum

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

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