143938
Descrição
Mapa Mental por toby_brown, atualizado more than 1 year ago
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Criado por toby_brown
mais de 11 anos atrás
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Calcium carbonate
- Limestone is mainly
made up of the
compound: Calcium
carbonate (CaCO3)
- It is quarried
and used as a
building
material
- It is quarried
and used as a
building
material
- When heated, Calcium
Carbonate thermally
decomposes to make
calcium oxide and carbon
dioxide
- Carbonates such as: magnesium,
copper, zinc, Calcium and Sodium
decompose in a similiar way by
heating.
- Calcium oxide reacts with water
to produce Calcium hydroxide
which can be used to nuetralise
acids
- Used to neutralise acid soils
- A solution of calcium hydroxide
in limewater reacts with CO2 in
the air to produce Calcium
carbonate.
- Limewater is used as a
test for CO2. CO2 turns
limewater cloudy
- Limewater is used as a
test for CO2. CO2 turns
limewater cloudy
- Used to neutralise acid soils
- Carbonates such as: magnesium,
copper, zinc, Calcium and Sodium
decompose in a similiar way by
heating.
- Carbonates react
with acids to produce
CO2, a salt and water
- Limestone is damaged by acid rain
- Other carbonates that
react with acid are:
magnesium, copper,
zinc and sodium
- the type of salt produced
depends on the type of
acid
- Limestone is damaged by acid rain
- Powdered limestone is
heated with powdered
clay to make cement
- Cement can be mixed
with sand and water to
make a mortar. Mortar is
what is used to stick
bricks together
- Cement can be mixed with
aggregate (water and gravel)
to make concrete
- Cement can be mixed
with sand and water to
make a mortar. Mortar is
what is used to stick
bricks together
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