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GCSE AQA Chemistry (old spec) > 2015 Stuff > Flashcards

2015 Stuff Flashcards

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1
Q

What’s a neutron

A

Has no charge and are found in the nucleus

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2
Q

What’s an electron

A

It has a negative charge and are found on shells

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3
Q

Metal+water=

A

Metal hydroxide+hydrogen

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4
Q

What’s an ionic bond

A

When oppositely charged joined together by electrostatic force of attraction

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5
Q

What are covalent bonds

A

A chemical bond between two non metals and they share electrons

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6
Q

What rock is limestone

A

Sedimentary

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7
Q

What is in limestone

A

Calcium carbonate (CaCO3)

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8
Q

What is limestone used for

A

Buildings, roads

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9
Q

How is cement made

A

Heating together limestone and clay in a rotary kiln

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10
Q

How is calcium oxide produced

A

Industrially in a lime kiln

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11
Q

Why does limewater turn cloudy

A

Because calcium carbonate reacts as its a solid and solid particles of insoluble calcium carbonate are formed as a precipitate

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12
Q

What’s a precipitate

A

A suspended solid in a solution but light can’t pass through it

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13
Q

Metal carbonate+acid=

A

Salt+water+carbon dioxide

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14
Q

Copper carbonate + sulphuric acid=

A

Copper sulphate+carbon dioxide+water

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15
Q

The limestone cycle:

A

CaCO3 -> CaO + CO2
CaO + H2O -> Ca(OH)2
Ca(OH)2 + CO2 -> CaCO3 + H2O

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16
Q

How is mortar made

A

Cement and sans

17
Q

What’s an ore

A

A rock which contains metal to make it economically worthwhile to extract the metal

18
Q

What’s the most reactive metal

A

Potassium

19
Q

What’s the least reactive metal

A

Platinum

20
Q

What’s a displacement reaction

A

When a more reactive element takes the place of a less reactive element

21
Q

More reactive metal + less reactive metal ->

A

More reactive metal compound + less reactive metal

22
Q

What’s a proton

A

Found in nucleus and has a positive charge

GCSE AQA Chemistry (old spec) (13 decks)

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