carbonates

Question 1

how is lime/calcium oxide produced

Answer 1

by the thermal decomposition of calcium carbonate or limestone

Question 2

what is slaked lime

Answer 2

adding water to lime gives us calcium hydroxide which is called slaked lime

Question 3

uses of lime and slaked lime

Answer 3

• treat acidic soils

- neutralise acidic industrial waste products (desulphurisation of acidic flue gases from power stations)

Question 4

uses of calcium carbonate

Answer 4

• used in the manufaccture of cement

- used in the extraction of iron, to remove acidic impurities such as silica from the ore to produce slag