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Chemistry > Carbonates > Flashcards

Carbonates Flashcards

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1
Q

What is Limestone Formula?

A

Calcium Carbonate ( CaCo3)

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2
Q

What is Lime Formula?

A

Calcium Oxide ( CaO )

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3
Q

What is Calcium Hydroxide? ( Ca(OH)2 )

A

Slaked Slime

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4
Q

What is Calcium Hydroxide? ( Ca(OH)2)

A

LimeWater

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5
Q

How is lime made?

A

Calcium carbonate decomposes when heated to form calcium oxide and carbon dioxide
CaCo3 (+heat) = CaO + Co2

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6
Q

How is Slaked Lime made?

A

By adding water to calcium oxide

Ca(OH)2 (s) = Ca(OH)2 (aq)

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7
Q

How is Limewater made?

A

Adding water to Slaked lime to make a solution

Ca(OH)2 + CO2 = CaCO3

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8
Q

How is Limestone made?

A

Adding CO2 gas to LimeWater

CaCO3 = CaO + CO2

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9
Q

What are the uses of CaCO3?

A

Limestone can be used to:

  • Manufacture iron and steel
  • Manufacture Cement
  • Neutralise excess acidity in lakes and soil
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10
Q

What are the uses of CaO?

A

Lime can be used to:

  • Neutralise soil acidity
  • Neutralise acidic industrial waste products ( Removes sulfuric acid )
  • Remove acidic impurities in the basic oxygen furnace
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11
Q

What are the uses of Ca(OH)2?

A

Slaked Lime can be used to:

  • Neutralise soil acidity
  • Neutralise acidic industrial waste products ( Removes sulfuric acid )
  • Glass manufacture
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12
Q

Carbon dioxide is produced when dilute hydrochloric acid reacts with?

A

Copper(II) Carbonate

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Chemistry (7 decks)

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