chemistry - Limestone C1.2

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Limestone Cycle

Limestone is very useful because it is used in everyday objects such as buildings, glass and even toothpaste. It is easily quarried and there are vast amounts of it for objects which are regularly used.

Calcium Carbonate is heated in a rotating kiln to around 1500 degrees celsius to form calcium oxide. This process is expensive due to the large cost of raw materials and the energy to heat also cost money.

Safety precaution you may need to take whilst heating limestone is to wear heat-protective gear

Limestone loses mass as it is heated because it loses the gas carbon dioxide

Limestone is easily eroded by acid rain , the equation below displays the reaction

CaCo3 + 2HCL ↪  CaCl2 + H20 + Co2

Calcium Carbonate is reacting with Hydrochloric acid to form Calcium Chloride, water and Carbon dioxide

Thermal Decomposition - breaking down using heat

All metal carbonates decompose whilst being heated . More reactive metals such as Potassium require a lot more heat than metals lower on the reactivity series

Copper carbonate can be…

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