Rocks And Their Formation Flashcards
0
Q
Size of crystals in rocks
A
Slower cool, larger crystals
1
Q
Igneous rock formation
A
Lava cools
Interlocking crystals
2
Q
Formation of metamorphic rocks
A
Sedimentary rocks under extreme heat/pressure
3
Q
Uses of limestone
A
Constructing buildings, roads railways bases, manufacture of cement concrete and glass
4
Q
Thermal decomposition of calcium carbonate products
A
Co2 calcium oxide
5
Q
Making cement and concrete
A
Heated limestone mixed with powdered clay(rotating kiln) -cement
Cement mixed with sand gravel and water- concrete
6
Q
Precipitation reactions
A
Soluble substances react to form an insoluble product (precipitate)
7
Q
Limewater
A
Calcium oxide (from heated limestone) with water, exothermic reaction, forms calcium hydroxide When mixed with co2 calcium carbonate and water is formed
8
Q
Neutralising with limestone
A
Can neutralise harmful gases such as sulfur dioxide and nitrogen oxides
