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morpeh [17]
3 years ago
6

A chemist is looking at an electrically neutral atom that has three valence electrons. If she knows the element is a metalloid,

which one (or ones) is it?
Chemistry
1 answer:
Rus_ich [418]3 years ago
8 0
Your answer is boron,

I looked at the periodic table, there is nothing else that falls under this specs.


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Gases tend to deviate from the ideal gas law at
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Answer:

<em>Gases tend to deviate from ideal gas law at </em><u><em>high pressures and low temperatures.</em></u>

Explanation:

The main statements from molecular kinetic theory to describe an ideal gas is that 1) the gas particles occupy a neglictible fraction of the total volume of the gas, and 2) there is not force of attraction between gas particles.

HIgh pressure means that the gas particles will be forced  closer to each other, making that the mean distance between the particles be realtively more important and their volume less neglictible. This is a violation the first assumption described above.

Since the temperature is directly related to the kinetic energy, and the latter with the movement of the particles (average speed), low temperatures lead to the molecules being less independent of each other, i.e. the forces between the molecules will count more . This fact constitutes a violation of the second principle established in the first paragraph.

In <u>conclusion</u>, <em>high pressures and low temperatures tend to deviate gases from the ideal gas law.</em>

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What causes thermal pollution in rivers?
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2 years ago
RNA is different from DNA because......​
Dovator [93]

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2 and 4 if its more than one answerd and if not 2

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There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first step, copper(I) sulfide and ox
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2Cu2S + 3O2 + 2C -------> 4Cu + 2SO2 + 2CO

Explanation:

Equation 1 should correctly be written as;

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Equation 2 should be correctly written as;

2Cu2O + 2C -----> 4Cu + 2CO

The overall reaction equation is;

2Cu2S + 3O2 + 2C -------> 4Cu + 2SO2 + 2CO

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