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Chemistry 1 Revision Booklet

Unit Chemistry 1 Syllabus
At the beginning of each sub-section, activities are stated which
develop candidates. skills, knowledge and understanding of how
science works. Details are then given of the substantive contexts in
which these skills, knowledge and understanding should be set. It is
expected that,…

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Calcium carbonate can be decomposed by heating (thermal decomposition) to make calcium
oxide (quicklime) and carbon dioxide.
Carbonates of other metals decompose on heating in a similar way.
Quicklime (calcium oxide) reacts with water to produce slaked lime (calcium hydroxide).
Limestone and its products have many uses, including slaked lime,…

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They are useful as structural materials and for making things that must allow heat or electricity to
pass through them easily.
Copper has properties that make it useful for electrical wiring and plumbing. Copper can be
extracted by electrolysis of solutions containing copper compounds. (No details are required of
the…

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Most fuels contain carbon and/or hydrogen and may also contain some sulfur. The gases
released into the atmosphere when a fuel burns may include carbon dioxide, water (vapour),
carbon monoxide and sulfur dioxide. Particles may also be released.
Sulfur dioxide causes acid rain, carbon dioxide causes global warming, and particles…

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Candidates should use their
skills, knowledge and
understanding of how science
works:
to evaluate the effects of using vegetable oils in foods and the impacts on diet and health
to evaluate the benefits, drawbacks and risks of using vegetable oils to produce fuels
to evaluate the use, benefits, drawbacks and…

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substantive contexts:
The Earth consists of a core, mantle and crust.
Scientists once thought that the features of the Earth.s surface were the result of the shrinking
of the crust as the Earth cooled down following its formation.
General Certificate of Secondary Education, 2007/8 examination - Chemistry
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Summary questions…

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4 Quicklime and slaked lime. Complete the following paragraph by filling in the
gaps.
Quicklime has the chemical name calcium ______________ and is formed when
limestone (chemical name ____________ __________) is heated strongly. When water is
added to quicklime, an ________________ reaction occurs which gives out a lot of heat…

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Match statements A, B, C and D with the numbers 1 to 4 to describe what
happens in this process.
A cement mixed with sand and crushed rock ..........
B concrete produced ..........
C limestone heated in a kiln with clay ..........
D water added to mixture .......... (4)

3…

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(b) Suggest and explain one disadvantage of using glass in buildings.
..........................................................................................................................
..........................................................................................................................
(2)

5 One of the largest limestone quarries in the United Kingdom is near the town of
Buxton. It is in the Peak District National Park, an area popular with tourists.




Suggest three social or environmental issues…

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(d) (i) Besides cement, what was the other solid in the ready-mixed mortar?
....................................................................................................................
(1)
(ii) What other solid is needed to make concrete instead of mortar?
....................................................................................................................
(1)



Rocks and Building past paper questions
1. Magnesium chloride is a useful salt.
The flow diagram shows how it can be…

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