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4 years ago

Which element is likely to have the highest thermal conductivity

Chemistry

1 answer:

AlexFokin [52]4 years ago

3 0

Gallium, due to its metal properties, which tend to conduct electricity and heat quite well.

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What volume would 4.32x1023 atoms of Krypton gas occupy at STP?

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3 years ago

If an equal mass of sugar and aluminum were poured into separate containers, which would require the smaller container?

kirill115 [55]

Aluminium requires the smaller container !

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3 years ago

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How many grams of carbon dioxide are produced when 16.0

Kobotan [32]

Mass of CO₂ = 33 g

<h3>Further explanation </h3>

Complete combustion of Hydrocarbons with Oxygen will be obtained by CO₂ and H₂O compounds.

If O₂ is insufficient there will be incomplete combustion produced by CO and H and O

Reaction

CH₄ + 2O₂⇒CO₂ + 2H₂O

mol CH₄ :

$\tt =\dfrac{16}{16}=1$

mol O₂ :

$\tt =\dfrac{48}{32}=1.5$

A method that can be used to find limiting reactants is to divide the number of moles of known substances by their respective coefficients

$\tt CH_4:O_2=\dfrac{1}{1}:\dfrac{1.5}{2}=1:0.75$

Because O₂ ratio smaller then O₂ becomes the limiting reactants

So mol CO₂ from limiting reactants

mol CO₂ :

$\tt \dfrac{1}{2}\times 1.5=0.75$

mass CO₂ :

$\tt mass=mol\times MW=0.75\times 44=33~g$

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3 years ago

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How many grams of chromium metal are plated out when a constant current of 8.00 A is passed through an aqueous solution containi

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Answer:

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Explanation:

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3 years ago

Solutions can only be separated by using distillation not filtration. Why can't a solution be filtered? Explain using the terms

garri49 [273]

<h2>Solutions</h2>

Explanation:

Solutions are formed when a solute gets dissolved in a solvent. The solid that gets dissolved is called solute whereas the liquid in which the solid gets dissolved is called the solvent. On dissolving, the particles of the solute gets incorporated between the inter-particle space of the solvent. This means that there is no significant difference between the particle size of solute and solvent. However the boiling points of solutions can differ significantly. This is the reason, the solutions cannot be separated by the method of filtration but by the method of distillation.

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4 years ago