Variety of Minerals

Which layer of Earth that is rich in natural minerals?

Which of following are elements

• 
• 
• 
• 

Calcite is made up of

• calcium

• carbon

• oxygen

• sulphur

What is the common name for silicon oxide

What is the common name for lead(II) sulphide

• Hematite

• Pyrite

• Galena

• Bauxite

Complete the word equation

calcium carbonate + hydrochloric acid --> _______ + _______ + _____

• calcium chloride

• oxygen

• carbon dioxide

• water

• chlorine

What happens if we change the water with lime water?

What is the product of the above reaction?

• calcium carbonate

• calcium oxide

• carbon dioxide

• oxygen

What is the physical properties of calcium carbonate?

• white color

• dark color

• has smell

• odorless

• insoluble in water

insoluble in water, dissolve in acid and forms stable colloids

these are chemical properties of mineral

• True

• False