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sveticcg [70]
3 years ago
13

When is electrolysis used to extract metal?

Chemistry
1 answer:
KatRina [158]3 years ago
7 0

Answer:

Explanation:

electrolysis is the technique that use direct current to drive a non spontaneous chemical reaction chemical reaction is the gain or lose of electron this technique is use to extract metal from theirs ores

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Hellllpppppppp helppppppppp
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Answer :

Charles's Law : It is defined as the volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

V\propto T

                                Boiling water bath        Cool bath 1       Cool bath 2

Temperature (⁰C)                  99                              17                       2

Temperature (K)(T)    273+99=372             273+17=290      273+2=275

Volume of water                  0.0                             27.0                34.0

in cool flask (mL)

Volume of water=              135.8                           135.8               135.8

Air in flask (mL)

Volume of air                    135.8                           108.8               101.8

in cool flask (V)

\frac{V}{T}                                \frac{135.8}{372}=0.365             \frac{108.8}{290}=0.375         \frac{101.8}{275}=0.370

The graph volume versus temperature for a gas is shown below.

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