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Limestone & its uses. Key words; formula, quicklime, thermal decomposition, word equation. Learning Objectives: By the end of the lesson I can:. • The formula of a compound shows the number and type of atoms that are joined together to make the compound.

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slide1

Limestone

& its uses

Key words; formula, quicklime, thermal decomposition, word equation

slide2

Learning Objectives: By the end of the lesson I can:

• The formula of a compound shows the number and type of atoms that are joined together to make the compound.

• Calcium carbonate can be decomposed by heating (thermal decomposition) to make quicklime (calcium oxide) and carbon dioxide.

• Limestone (CaCO3), and its products have many uses, including slaked lime, mortar, cement, concrete and glass.

• Consider and evaluate the environmental, social and economic effects of exploiting limestone and producing building materials from it.

what do the following substances have in common

starter

What do the following substances have in common?

Marble is a

Metamorphic

rock

Calcium carbonate is a

pure compound!

it is not a rock

and hence

it is not

a mixture!

Limestone

Marble

Chalk

Limestone and Chalk

are sedimentary rocks

Calcium Carbonate

classify the following substances into groups explain why you have
Classify the following substances into groups & explain why you have

Sodium

Carbonate

Chalk

Limestone

Cement

Calcium

Carbonate

Calcium

Sand

Carbon

Calcium

Oxide

Oxygen

Water

Clay

Coal

task use your text to create an a map
Task: Use your text to create an A-map

glass

formation

  • Add keywords
  • Add pictures
  • Complete sentences
  • using keywords to
  • connect the map

Limestone

thermal

decomposition

cement

peer learning
Swap your map with another pair on your table and add in ANOTHER 4th COLOUR any additional information to further improve their map.Peer Learning
summary 1
We quarry large amounts of limestone rock because it has many uses. Blocks of limestone can be used for building and it is used to make;

Quicklime

Cement

glass

plenary

Summary 1
summary 2
Limestone is made mainly of calcium carbonate

What is the formula?

When heated strongly in large lime kilns, calcium carbonate decomposes to make quicklime (calcium oxide) and carbon dioxide.

What is the formula?

We can present the reaction as a word equation

What is the word equation?

plenary

Summary 2