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bekas [8.4K]
3 years ago
15

Non metal are usually poor conductor of hart and electricity . The are non -lustourous,non-sonours,non-malleable and are coloure

d 1. Name a non-malleable 2. Name a non-matal which exist as a liquid at room temperature 3. The allotropic form a non-matal which is good conductor of of electricity . Name the allotrope 4. Name a non -metal other than carbon which shows allotropy 5 . Name a non -metal which is know to form the largest number of compounds 6. Name a non-metal which is required for combustion

Chemistry
1 answer:
vekshin13 years ago
7 0
Check the solution in the attachment.

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Answer:

Kc for this equilibrium is 2.30*10⁻⁶

Explanation:

Equilibrium occurs when the rate of the forward reaction equals the rate of the reverse reaction and the concentrations of reactants and products are held constant.

Being:

aA + bB ⇔ cC + dD

the equilibrium constant Kc is defined as:

Kc=\frac{[C]^{c}*[D]^{d}  }{[A]^{a} *[B]^{b} }

In other words, the constant Kc is equal to the multiplication of the concentrations of the products raised to their stoichiometric coefficients by the multiplication of the concentrations of the reactants also raised to their stoichiometric coefficients. Kc is constant for a given temperature, that is to say that as the reaction temperature varies, its value varies.

In this case, being:

2 NH₃(g) ⇔ N₂(g) + 3 H₂(g)

the equilibrium constant Kc is:

Kc=\frac{[N_{2} ]*[H_{2} ]^{3}  }{[NH_{3} ]^{2} }

Being:

  • [N₂]= 0.0551 M
  • [H₂]= 0.0183 M
  • [NH₃]= 0.383 M

and replacing:

Kc=\frac{0.0551*0.0183^{3}  }{0.383^{2} }

you get:

Kc= 2.30*10⁻⁶

<u><em>Kc for this equilibrium is 2.30*10⁻⁶</em></u>

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Which does not affect global wind belts
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Answer:

b

Explanation:

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Which scientist invented the first simple Microscope ?
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Answer:

D.  Leeuwenhoek

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Which of these molecular electron configurations describe an excited state?
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A) ambos pertencem ao 5o período da Tabela Periódica;
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Answer:

A

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