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Wittaler [7]
3 years ago
8

Explique por qué se necesita una temperatura alta para derretir el yoduro de potasio.​

Chemistry
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:

El yoduro de potasio es una sal cristalina de fórmula KI, usada en fotografía y tratamiento por radiación. Al ser menos higroscópica que el yoduro de sodio, es más utilizada como fuente de ion yoduro.

Explanation:Se porta como una sal simple. El ion yoduro, al ser un reductor débil, es fácilmente oxidado por otros elementos como el cloro para transformarse en yodo:

2 KI(ac) + Cl2(ac) → 2 KCl + I2(ac)

Tiene un pH neutro (pH = 7) ya que el catión potasio y el anión yoduro son iones espectadores, por lo que no reaccionan con el agua, manteniéndose inalterado el pH. El yoduro se oxida aún más fácilmente al formar ácido yodhídrico (HI), el cual es un reductor más fuerte que el KI. El yoduro de potasio forma el anión triyoduro(I3−) al combinarse con yodo elemental.

A diferencia del yodo, los triyoduros son altamente solubles en agua, por lo que el yoduro de potasio aumenta considerablemente la solubilidad del yodo elemental en agua, que por sí solo se disuelve en muy bajas cantidades.

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3 years ago
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Which of the following solutions is a good buffer system?A solution that is 0.10 M HCN and 0.10 M NaClA solution that is 0.10 M
patriot [66]

Answer:

A solution that is 0.10 M HCN and 0.10 M LiCN

Explanation:

  • A good buffer system contains a weak acid and its salt or a weak base and its salt.
  • In this case; A solution that is 0.10 M HCN and 0.10 M LiCN, would make a good buffer system.
  • HCN is a weak acid, while LiCN is a salt of the weak acid, that is, CN- conjugate of the acid.
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3 years ago
What is a net ionic equation?
jolli1 [7]

Answer:

I think it will option D hope it helps

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carbon is a black solid, or a diamond
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8 0
3 years ago
Which of the following is an example of a concentric contraction
anastassius [24]
The best and the correct answer among the choices provided by the question is the second choice or letter B.

A bicep curl is a<span>n example of a concentric contraction.


</span>I hope my answer has come to your help. Have a nice day ahead and may God bless you always!
3 0
3 years ago
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