FORM 3: Chapter 4.1 Variety of Minerals

Tick TWO elements found in the Earth's crust

• Bauxite

• Gold

• Silver

• Hematite

The diagram shows galena mineral. Tick the elements found in galena

• Iron

• Lead

• Oxygen

• Sulphur

The diagram shows bauxite mineral. Tick the elements found in bauxite.

• Aluminium

• Lead

• Oxygen

• Carbon

This mineral contains of elements calcium, carbon, and oxygen. What is the common name of this mineral?

• Pyrite

• Cassiterite

• Calcite

• Quartz

Dilute hydrochloric acid is poured into calcium carbonate inside a boiling tube as shown in the diagram. What are produced after the reaction? Tick the correct answers.

• Calcium oxide

• Carbon dioxide

• Water

• Calcium chloride

After calcium carbonate is heated, a gas passes through the delivery tube to the limewater. The limewater turns milky as shown in the diagram. Name the gas produced.

Calcium carbonate will be changed to another compound after being heated. Name the new compound produced.

• Calcium chloride

• Calcium oxide

• Calcium hydroxide

• Calcium sulfate