Define alkene.

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What is a hydrocarbon? How are hydrocarbons formed? What is the Homologous series? What are saturated compounds? What is an an Alkane? What are the first 4 Alkanes? What happens when the carbon chain gets longer? what happens to the consistency of a hydrocarbon as the chain increases in length What is the product of hydrocarbon and oxygen? What are hydrocarbons used for? Why are hydrocarbons used as fuel? How is crude oil formed? What is crude oil? What is fractional distillation? Why is fractional distillation used on crude oil? What are fossil fuels? Why are fossil fuels unsustainable? What is fractional distillation? what is fractional distillation used for? Why is fractional distillation used? How does fractional distillation work? What are some uses of crude oil? What is cracking crude oil? Why is cracking done on crude oils? How does cracking crude oils work? What kind of bonds are present in alkanes? Why are alkanes used as fuels? What sort of hydrocarbon molecules are cracked? Suggest 2 materials produced from hydrocarbons by the petrochemical industry What 2 elements are hydrocarbons made of? What is the general formula for Alkanes? What type of bonds exist between atoms in an alkane? What alkane contains 3 carbon atoms? What factors affect the boiling point of hydrocarbons? What happens to long chain hydrocarbons when they undergo cracking?# What product of cracking is used in plastic? What are the methods of cracking? How many methods of cracking are there? Define Alkane. Define hydrocarbon. What is the definition of purity? How does purity effect boiling points? How does purity effect melting points? What is the definition of formulations? What are some examples of formulations? Where are formulations used? How would you test for hydrogen? How would you test for carbon dioxide? How would you test for oxygen? How would you test for Chlorine? What is chromatography? How does chromatography work? When is chromatography used? What are the 2 phases of chromatography? What effect does Chromatography have on a mixture? Define unsaturated Describe the test which differentiates alkanes from alkenes Do alkanes contain a carbon to carbon double bond? Do alkenes contain a carbon to carbon double bond? Are alkanes saturated or unsaturated hydrocarbons Are alkenes saturated or unsaturated hydrocarbons? Define crude oil. Why is cracking needed? Which property are crude oil fractions separated using? State the general formula of an alkane. State the general formula of an alkene. State the dangers of incomplete combustion. State the word equation for complete combustion. Write the balanced symbol equation for the complete combustion of methane. Why do we use fractional distillation to separate hydrocarbons? Why is crude oil a finite resource? How do we obtain alkenes? Name one use of methane gas. Name one use of petrol. Name one use of kerosene. Name one use of diesel. Name one use of fuel oil. Name one use of bitumen. Describe how a fractional distillation column separates crude oil fractions. Why do fractional distillation columns have a temperature gradient. Name the bonds present in an alkane. What two elements do hydrocarbons contain? Give an example of a fossil fuel. What are hydrocarbons made up of? What is a distillation unit? Where do heavy liquids go in a distillation unit? Why are heavy liquids at the bottom of a distillation unit? Why does propane gas have the lowest viscosity out of all other factions? What is combustion? What is incomplete combustion? Explain the effects carbon monoxide can have on the human body