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Art [367]
3 years ago
6

A mixture of iron and sulfur can be separated by A.magnetic attraction

Chemistry
1 answer:
Elenna [48]3 years ago
6 0
A. Magnetic attraction
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754

Explanation:

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How many molecules of ammonia (NH3) are contained in 10 moles of NH3? Please provide the work if you could :)
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<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. We do as follows:

 </span>10 mol NH3 ( 6.022 x 10^23 molecules / 1 mol ) = 6.022x10^24 molecules NH3
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3 years ago
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What happens when a nitrogen molecule is formed from two nitrogen atoms?
Helga [31]

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They form a covalent bond

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How do the strength and the cohesion of clay-rich regolith or soil change with the addition of water?
lisov135 [29]

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Water lowers the strength and cohesion of clay-rich regolith or soil.

Explanation:

Water can seep into the soil or clay-rich regolith and replace the air in the pore space of the soil or regolith. Water will completely surrounds all the grains of the clay-rich regolith and breaks the bonds in between the grains, that is eliminating all grain to grain contact of the regolith. When the regolith becomes saturated with water, the angle of repose is reduced to very small values and the regolith tends to loose its form.

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