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tankabanditka [31]
3 years ago
14

Purest form of carbon is

Chemistry
2 answers:
vladimir2022 [97]3 years ago
4 0

Answer:

Obtención. El carbono se encuentra - frecuentemente muy puro - en la naturaleza, en estado elemental, en las formas alotrópicas diamante y grafito. El material natural más rico en carbono es el carbón (del cual existen algunas variedades). Grafito: Se encuentra en algunos yacimientos naturales muy puro.

Mashutka [201]3 years ago
3 0

Answer:

Diamond is the purest form of carbon I think.

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Answer:

It's not any kind of reaction. This is the decomposition/electrolysis reaction: 2H2O=2H2+O2 and this is the synthesis/combustion/oxidation reaction:2H2+O2=2H2O.

Explanation:

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A chemical reactions occurs when, _____?
bixtya [17]

Answer:

Reactants are transformed into products

Explanation:

Chemical reactions are happening everywhere, it may be represented by the following equation:

A(aq) + B(s) ⇒ C(g) + D(l)

The left side represent the reactants that interact to get the products.

In the parenthetycal note is the state of the compound, in this case, aquose solution (aq), solid (s), gas (g), liquid (l)

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Cloud is a gas.

ice is a solid.

snow is a solid.

steam is a gas.

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You have probably noticed that some liquids, such as honey and molasses, flow slowly at room temperature. How does heating affec
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Hope this helps :)

5 0
3 years ago
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 258 torr . Pure pe
Sidana [21]

Answer:

The mole fraction of hexane is 0.61

Explanation:

Raoult's law allows calculating the vapor pressure of a substance when it is forming part of an ideal solution, knowing its vapor pressure when it is pure (at the same temperature) and the composition of the ideal solution in terms of mole fraction.

Pi=xi*Pi°

where Pi is the partial pressure of component i in the solution, Pi ° is the vapor pressure of component i pure and xi is the mole fraction of component i in the liquid phase.

In a solution, once the components have reached chemical equilibrium, the total vapor pressure is:

Psolution=P1 + P2=x1*P1° +x2*P2°

In this case:

Psolution= xpentane*Ppentane° +xhexane*Phexane°

Being:

  • Psolution= 258 torr
  • xpentane + xhexane=1 ⇒ xpentane= 1 - xhexane
  • Ppentane°=  425 torr
  • xhexane= ?
  • Phexane°= 151 torr

and replacing:

258 torr= (1-xhexane)* 425 torr + xhexane* 151 torr

you get:

258 torr= 425 torr - 425 torr*xhexane + xhexane* 151 torr

258 torr - 425 torr= - 425 torr*xhexane + xhexane* 151 torr

-167 torr= -274 torr*xhexane

xhexane=\frac{-167 torr}{-274 torr}

xhexane= 0.61

<u><em>The mole fraction of hexane is 0.61</em></u>

4 0
3 years ago
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