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GCSE chemistry > C5 > Flashcards

C5 Flashcards

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1
Q

What are the first 4 elements of the reactivity series

A

Potassium
Sodium
Lithium
Calcium

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2
Q

What are the second three elements of the reactivity series

A

Magnesium
Zinc
Iron

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3
Q

What are the least reactive in the reactivity series

A

Copper silver and gold

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4
Q

What is oxidisation

A

Oxygen has been added and electrons have been lost

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5
Q

What is reduction

A

Oxygen has been removed an element returns to normal atomic state

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6
Q

What is an ore

A

A rock that contains enough of a metal to make it worthwhile extracting

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7
Q

What does a metal reacting with water produce

A

A metal hydroxide and water

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8
Q

What metals do not react with water

A

Not very reactive ones
Eg copper

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9
Q

What is a displacement reaction

A

When a more reactive metal displaces a less reactive metal in a compound

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10
Q

What is OIL RIG

A

Oxidised is Loss
Reduction is gained

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11
Q

What happens when an acid reacts with a base

A

Neutralisation reaction occurs

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12
Q

What is produced in a neutralisation reaction

A

Salt and water

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13
Q

How else can you make a soluble salt

A

Reacting acid and a carbonate

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14
Q

What ions do acids produce

A

H+

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15
Q

Give an example of a base

A

Metale oxides and hydroxides

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16
Q

What do alkalis produce

A

OH-

17
Q

What are strong acids

A

Acids that ionise completely in aqueous solutions

18
Q

What is pH value of 0.000001

A

6

19
Q

How is a metal removed from an ore

A

Reduction reaction

20
Q

Where is carbon in reactivity series

A

Below magnesium

21
Q

Where is hydrogen in reactivity series

A

Above copper

22
Q

What are the charges on salts

A

No overall charge

23
Q

how is ph measured

A

based on the concentration of H+ ions in mol/dm cubed

GCSE chemistry (18 decks)

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