Chemistry Chapter 2

Limestone and its uses 

• Limestone is mainly made of up CaCo3 
• The CaCo3 breaks down when heated strongly to make calcium oxide and carbon dioxide 
• This reaction is thermal decompostion 

Reactions of Carbonates 

• Carbonates react with acid to form a salt, water and Co2
• Cloudy Limewater shows Co2 is present 
• …