BLAZING AWAY!!!!

Natural Gas (2.1) What is the chemical name for natural gas? What are the properties and formula of methane? What gas in the air is used up when methane burns? What 2 substances are formed when methane burns completely? How can you test for these 2 substances?

Combustion (2.1) What is combustion? Why does a bunsen burn more fiercely with the air-hole open? Why is combustion said to be an exothermic reacion? What do the products of combustion of methane prove about methane itself?

Alkanes (2.2) What are the names and uses of some common alkane mixtures? What is a hydrocarbon? What 2 substances are formed when a hydrocarbon burns completely? What are the differences between a molecular formula and a structural formula?

Alkanes (2.2) Can you draw the structural formula for the first 10 alkanes? What is the molecular formula for the first 10 alkanes? Can you name the first 10 alkanes? What is the word equation for any alkane burning in oxygen?

Homologous Series (2.2) What is the rule for working out the number of hydrogen atoms in an alkane molecule? What is a homologous series, and why are the alkanes an example of one? What is the general formula for the alkanes? Why are the products of combustion the same for every alkane?

Fossil Fuels (2.3) Can you explain how coal and oil were formed (where, what from, how long it took)? Why are coal, oil and gas referred to as fossil fuels? What is crude oil, and why does it have to be refined?

Fractional Distillation (2.3) How can distillation be used to separate the liquids in crude oil? What are fractions? As the boiling point of a fraction increases, what happens to the speed of evaporation, viscosity and flammability?

Fractional Distillation (2.3) How does the size of a molecule change as the boiling point of a fraction increases? What are some of the fractions distilled from crude oil and what are they are used for? What are the typical numbers of carbon atoms in each of the fractions?

Alkenes (2.4) How are alkenes similar to alkanes in their properties? Can you describe the chemical test for telling an alkane and an alkene apart? How are alkenes made from alkanes? What is the main type of substance made from alkenes?

Alkenes (2.4) Why are alkenes also hydrocarbons? What is meant by a double bond? Can you name and draw the structural formula of the first 10 alkenes? Can you work out the molecular formula of the first 10 alkenes?

Alkenes (2.4) What is the word equation for any alkene burning in oxygen? What is the functional group in an alkene? How can you work out the number of hydrogen atoms in an alkene molecule if you know the number of carbon atoms?

Alkenes (2.4) Why does methene not exist? What is the general formula for the alkenes? Why do alkenes give the same combustion products as alkanes?

Carbon (2.5) What are the symbol and properties of carbon? Where are natural diamonds formed? What are the properties of diamond? Can you name 3 different forms of carbon?

Carbon (2.5) Can you draw a diagram of the experiment you would use to prove the products of combustion of carbon or a hydrocarbon? What is the word and formula equation for carbon burning in air? What is carbon dioxide used for?

Carbon (2.5) What is the formula of carbon monoxide, and how is it formed? Why is carbon monoxide dangerous? What is formed when carbon monoxide burns in air?

Pollution (2.6) What are the main chemicals emitted from car exhausts? Which of these are considered to be pollutants? What can be done to reduce this pollution? What is a catalyst? Which metals are used as catalysts in catalytic converters?

Cracking (2.7/2.8) What does cracking mean in chemistry? Can you describe an experiment to demonstrate the cracking of an alkane? What is the purpose of the steel wool in the cracking experiment?

Cracking (2.7/2.8) How do the results of the experiment show the products to be a mixture of alkanes and alkenes? What are the important safety points in the cracking experiment?

Cracking (2.7/2.8) Which fractions from crude oil are most in demand? How do oil refineries meet this demand? What is a catalytic cracker? Why are the products of cracking then passed through a fractionating column?

Saturation (2.7) What do the words saturated and unsaturated mean? Give examples. What is the chemical test for unsaturation in hydrocarbons? What is an addition reaction? Give an example.

Isomers (2.9) What are isomers? Can you draw some alkane isomers? What is a cycloalkane? Can you name the first ten cycloalkanes, and give their molecular and structural formulae? What is the general formula of cycloalkanes and why are they isomeric with the alkenes?