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Chem Unit 1 > Limestone and Building Materials > Flashcards

Limestone and Building Materials Flashcards

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1
Q

what is the chemical symbol for calcium carbonate

A

CaCO3

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2
Q

what is needed to turn limestone into quick lime

A

Heat

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3
Q

what is the chemical name for quicklime

A

calcium oxide

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4
Q

what is the chemical symbol for calcium oxide

A

CaO

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5
Q

what is added to quicklime to make slaked lime

A

water

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6
Q

what is the chemical name for slaked lime

A

calcium hydroxide

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7
Q

what is the chemical symbol for calcium hydroxide

A

Ca(OH)2

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8
Q

how can we turn slaked lime back into limestones

A

add CO2

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9
Q

we can dissolve slaked lime in water to form what

A

limewater (aqueous)

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10
Q

how is limewater made back into calcium carbonate

A

add CO2

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11
Q

what can be added to limestone to make cement

A

clay

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12
Q

when sand is added to cement what is the product

A

mortar

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13
Q

when small stones are added to mortar what does this create

A

concrete

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14
Q

what is added to concrete to make reinforced concrete

A

steel

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15
Q

sulphuric acid causes acid rain. Why can this be a problem to some buildings

A

some buildings are made from limestone, which is dissolved by acid rain

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16
Q

what is the chemical name for limestone

A

calcium carbonate

Chem Unit 1 (7 decks)

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