MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Earn 100
There are three types of giant structure - ionic, metallic and macromolecular. Describe metallic bonding.
Important Questions on Cambridge IGCSE Exam Questions from Paper 3
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
There are three types of giant structure - ionic, metallic and macromolecular. Use the above ideas to explain why metals are
A: good conductors of electricity,
B: metals are malleable.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
There are three types of giant structure - ionic, metallic and macromolecular. Silicon oxide has a macromolecular structure. Describe the structure of silicon oxide (a diagram is not acceptable).
EASY
Upper Secondary: IGCSE
IMPORTANT
There are three types of giant structure - ionic, metallic and macromolecular. Silicon oxide has a macromolecular structure. Diamond has a similar structure and consequently similar properties. Give two physical properties common to both diamond and silicon oxide.
EASY
Upper Secondary: IGCSE
IMPORTANT
Calcium carbonate is an important raw material. Name a rock made up of calcium carbonate.
EASY
Upper Secondary: IGCSE
IMPORTANT
Calcium carbonate is an important raw material. When calcium carbonate is heated strongly, it decomposes: . Calculate the relative formula mass of .
EASY
Upper Secondary: IGCSE
IMPORTANT
Calcium carbonate is an important raw material. When calcium carbonate is heated strongly, it decomposes: . Calculate the relative formula mass of .
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Calcium carbonate is an important raw material. When calcium carbonate is heated strongly, it decomposes: . of calcium oxide was formed. What mass of calcium carbonate was heated?
EASY
Upper Secondary: IGCSE
IMPORTANT
Calcium carbonate is used to control soil acidity. Why is it important to control soil acidity?
