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C4 - Chemical Changes > Electrolysis > Flashcards

Electrolysis Flashcards

1
Q

In electrolysis, what is the name of the negative electrode?

A

Cathode

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2
Q

What happens at the anode during electrolysis?

A

Negative ions lose electrons

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3
Q

In the electrolysis of molten lead bromide, what is the product at the anode?

A

Bromine

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4
Q

In the electrolysis of copper nitrate solution, what is the product at the cathode?

A

Copper

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5
Q

In the electrolysis of a solution, which ions from water are attracted to the anode?

A

Hydroxide ions

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6
Q

In the electrolysis of sodium chloride solution, what is the product at the cathode?

A

Hydrogen

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7
Q

What is a hypothesis?

A

An idea to be tested by experiment, backed up by scientific knowledge

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8
Q

What is reduction? - Higher

A

Gain of electrons

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9
Q

Which half equation represents the reaction at the cathode in the electrolysis of molten copper chloride? - Higher

A

Cu2+ + 2e- → Cu

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C4 - Chemical Changes (3 decks)

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