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Sedbober [7]
2 years ago
12

How can you distinguish between crystalline allotropic modifications of Sulphur from those of amorphous allotrops?​

Chemistry
1 answer:
Burka [1]2 years ago
4 0

The crystalline allotropes of sulfur are very strong and have a high melting and boiling point while the amorphous allotropes of sulfur are brittle and breaks easily.

<h3>What is a crystalline substance?</h3>

A crystalline substance is one that has a definite arrangement of the atoms in the substance. An amorphous substance lacks this definite arrangement. We can see this arrangement when we conduct an X-ray crystallography of the sulfur.

Also, the crystalline allotropes of sulfur are very strong and have a high melting and boiling point while the amorphous allotropes of sulfur are brittle and breaks easily.

Learn more about sulfur:brainly.com/question/13469437

#SPJ1

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Answer:

attached below

Explanation:

3 0
3 years ago
What is the volume of 12.0 grams of oxygen gas at STP<br><br> Atomic mass:O = 15.99 grams/moles
strojnjashka [21]

Answer:

16.82 L.

Explanation:

  • We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm (P = 1.0 atm, STP conditions).

V is the volume of the gas in L (V = ??? L).

n is the no. of moles of the gas in mol (n = mass/molar mass = (12.0 g)/(15.99 g/mol) = 0.7505 mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),

T is the temperature of the gas in K (T = 0.0°C + 273 = 273.0 K, STP conditions).

<em>∴ V = nRT/P</em> = (0.7505 mol)(0.0821 L.atm/mol.K)(273.0 K)/(1.0 atm) = <em>16.82 L.</em>

6 0
4 years ago
Which law relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions?
Elanso [62]

Ideal gas law

Explanation:

The ideal gas law relates the temperature, pressure, volume and the number of moles of a gas under perfect conditions.

The ideal gas law is a combination of:

    Boyle's law- "the volume of a fixed mass of gas varies inversely as the pressure changes if the temperature is constant"

   Charles's law - "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant"

    Avogadro's law - "equal volumes of all gases at the same temperature and pressure contains equal number of molecules".

 The law gives:

                     PV = nRT

where:

   P is the pressure of the gas

   V is the volume of gas

    n is the number of moles

     T is the temperature

     R is the gas constant

Learn more:

Ideal gas law problems brainly.com/question/13064292

#learnwithBrainly

7 0
3 years ago
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Answer:

In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a

Explanation:

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3 years ago
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Drupady [299]
Im sorry whats the question
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