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Form 3: Chapter 4
Reactivity of Metals
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Mark (/) for the characteristics of minerals.
*
3 points
Exist naturally
Organic
Solid
Has fixed chemical composition
Required
Classify the following minerals into element and compound.
*
6 points
Element
Compound
Bauxite
Silver
Gold
Hematite
Metal sulphide
Platinum
Element
Compound
Bauxite
Silver
Gold
Hematite
Metal sulphide
Platinum
Mark (/) the elements found in galena.
*
2 points
Lead
Sulphur
Iron
Oxygen
Required
Mark (/) the elements found in bauxite.
*
2 points
Aluminium
Copper
Carbon
Oxygen
Required
Mark (/) the elements found in quartz.
*
2 points
Iron
Tin
Oxygen
Silicon
Required
Mark (/) the elements found in calcite.
*
3 points
Iron
Carbon
Oxygen
Calcium
Required
Match the following minerals with its correct use.
*
4 points
Mica
Calcium oxide
Silicon dioxide
Copper
Neutralises acidic soil
To make electric wire
To make glass
As electric component
Mica
Calcium oxide
Silicon dioxide
Copper
Neutralises acidic soil
To make electric wire
To make glass
As electric component
Mineral ________ dissolve in water.
*
1 point
can
cannot
Calcium carbonate is a natural compound that exists in various forms, colours and textures. Mark (/) for the substances that contain calcium carbonate.
*
2 points
Chalk
Hematite
Coral reefs
Gold
Required
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