aqa chemistry c1

Give 2 advantages of quarrying.

Give 2 disadvantages of quarrying

Why is limestone so important?

What is limestone made from? (include symbol)

Describe how limestone and other carbonates react with acid.

explain how limestone so badly affected by acid rain.

Explain WHY limestone is used to neutralise acidity in lakes.

Explain HOW limestone is used to neutralise acidity in lakes

Explain how limestone can be broken down by thermal decomposition.

Why will the mass after a thermal decomposition reaction appear to be lower?

Describe how calcium oxide can be turned into calcium hydroxide.

How is cement made?

How is mortar made?

Explain how concrete is made.

Explain the environmental effects of the production of cement and concrete.

Give one disadvantage of building with concrete/cement

Give 2 advantages of concrete as a building material

Why do we recycle metals?

Explain why some rare metals were discovered before common metals.

How can less reactive metals be extracted?(e.g iron and copper)

Why is aluminium more expensive than less reactive metals?

How is iron extracted from its ore?

Why is limestone used in iron extraction?

Give some of the useful properties of metals

Give 2 advantages and one disadvantage for iron.

Give 3 advantages for copper

What is a transition metal?

Explain why modern day aircrafts are made of aluminium and not steel.

Explain why jets are made from titanium and not aluminium.

What is a steel alloy?

Describe the main compounds in crude oil.

Explain why alkanes are called saturated hydrocarbons

What is the general formula for alkanes?

Explain what mixtures are and how they differ from compounds.

What is fractional distillation typically used for?

Explain the process of fractional distillation.

Describe how crude oil can be separated.

During oil fractionation, which alkanes condense where?

Explain the advantages and disadvantages of using short chained alkanes as fuels

Explain the advantages of using alkanes with intermediate chains as fuels.

Explain what complete combustion is (to coal).

Explain when incomplete combustion happens (to coal).

Explain how natural gases burn.

What are particulates and what do they contain?

Explain the consequences of particulates

Explain the greenhouse effect

Explain how carbon dioxide contributes to global warming.

Explain what causes global dimming

Explain the consequences of global dimming.

Describe the ways in which sulfur dioxide emissions may be reduced.

What is cracking and why is it done?

How is cracking done?

What are the alkanes and alkenes used for after cracking?

What type of reaction is cracking?

What are polymers made from?

What is ethanol? (include symbol)

Describe how emulsions form in full fat milk.

Describe the properties of emulsifiers.

Describe the bonds in unsaturated vegetable oils.

How does bromine work?

Describe the structure of the earth

describe what tectonic plates are

Explain where earthquakes and volcanoes are most likely to occur

Describe how gases in the air can be separated by the fractional distillation of liquified air.