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Chemisty > Limestone > Flashcards

Limestone Flashcards

0
Q

What is the chemical formulae for calcium carbonate?

A

CaCO3

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1
Q

What is limestone mainly made up of?

A

Calcium carbonate

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2
Q

What can you find in some limestone?

A

Animals and plants remains in chalk

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3
Q

What make cement?

A

Powdered limestone + powered clay

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4
Q

What makes mortar?

A

Cement + sand + water

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5
Q

What makes concrete?

A

Cement + sand + water = gravel

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6
Q

What type of weather can dissolve limestone?

A

Acid rain

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7
Q

How does limestone get out to the ground?

A

Quarried out the ground

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8
Q

Breaking down a chemical by heating is called ….

A

Thermal decomposition

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9
Q

What is the chemical formulae

Calcium carbonate = calcium oxide + carbon dioxide

A

CaCO3 = CaO + CO2

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10
Q

How do you make glass?

A

Heat limestone with sand and sodium carbonate

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11
Q

Calcium carbonate + heat = …..

A

Calcium oxide

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12
Q

Calcium oxide + water = ….

A

Calcium hydroxide

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13
Q

What do you add to calcium carbonate ( limestone ) to make calcium oxide ( quicklime )

A

Add heat

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14
Q

What do you add to calcium oxide ( quicklime ) to make calcium hydroxide ( limewater )

A

Add a bit of water

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15
Q

What do you add to calcium hydroxide ( limewater ) to make calcium hydroxide solution ( slaked lime )

A

Add more water and filter

16
Q

What do you add to calcium hydroxide solution ( slaked lime ) to make calcium carbonate ( limestone )

A

Add CO2

17
Q

What is calcium oxide

A

Quicklime

18
Q

What is calcium hydroxide

A

Lime water

19
Q

What is calcium hydroxide solution

A

Slaked lime

Chemisty (1 decks)

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