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Chemistry > Electrolysis > Flashcards

Electrolysis Flashcards

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1
Q

Positive ion during molten electrolysis

A

Becomes an atom

X^(2+) + 2e- -> X

Cathode

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2
Q

Negative ion during molten electrolysis

A

Stays an ion

2X- -> X^2 + 2e-

Anode

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3
Q

Reduction

A

Loss of oxygen from a substance

Gain of electrons

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4
Q

Oxidation

A

Gain of oxygen

Loss of electrons

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5
Q

At the cathode (metal ions) during electrolysis of solution

A

Reactivity series

Please | Potassium
Stop | Sodium
Calling | Calcium
Me | Magnesium
A | Aluminium
(Crazy) | (Carbon)
Zombie | Zinc
If | Iron
The | Tin
Large | Lead
(Hippo) | (Hydrogen)
- anything below hydrogen will be produced
Comes | Copper
Swimming | Silver
God | Gold
Please | Platinum
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6
Q

At the anode (non-metal ions) during electrolysis of solution

A

Oxygen is produced unless halide ions are present

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Chemistry (6 decks)

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