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AS Chemistry > Oxidation Numbers > Flashcards

Oxidation Numbers Flashcards

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1
Q

Define an Oxidation Number.

A

A measure of the number of electrons that an atom uses to bond with atoms of another element.

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2
Q

What is the Oxidation Number of elements?

A

0

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3
Q

What is the overall Oxidation number in Ions

A

The charge on that ion.

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4
Q

What is the overall Oxidation Number for Carbonate?

A

-2

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5
Q

What is the overall Oxidation number for Magnesium Sulphate?

A

0

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6
Q

What is the overall Oxidation number for compounds?

A

0

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7
Q

In a compound, what is the Oxidation number for Oxygen?

A

-2

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8
Q

In a compound, what is the Oxidation number for Hydrogen?

A

+1

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9
Q

What is the Oxidation number for Group 1 elements?

A

+1

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10
Q

What is the Oxidation number for Li?

A

+1

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11
Q

What is the Oxidation number for Group 2 elements?

A

+2

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12
Q

What is the Oxidation number for Magnesium?

A

+2

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13
Q

What is the Oxidation number for Group 7 elements?

A

-1

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14
Q

What is the Oxidation number for F?

A

-1

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15
Q

What does the Roman Numeral in Compounds show?

A

It shows the Oxidation number of the element before it.

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16
Q

What is the oxidation number of Iron in Iron (III) Chloride?

A

3

17
Q

In terms of electrons, Oxidation is?

A

The loss of electrons

18
Q

In terms of electrons, Oxidation is?

A

The gain of electrons

19
Q

What is Oxidation?

A

Oxidation is an increase in the Oxidation number

20
Q

What is Reduction?

A

Reduction is a decrease in the Oxidation number

AS Chemistry (14 decks)

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