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32 Cards in this Set
- Front
- Back
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name 3 fossil fuels
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coal, petroleum, natural gas
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structural formula for alkane
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C(n)H(2n+2)
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structural formula for alkene
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C(n)H(2n)
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structural formula for ethene
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C2H4
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what is the mnemonic for the prefixes of hydrocarbons
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monkeys eat peeled bananas
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what are the two types of cracking
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cat cracking and thermal cracking
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what is the main catalyst for the catalytic cracking of petroleum fractions
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zeolite
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what is the most widely used raw material for production of ...plastics, industrial chemicals, insecticides, pharmaceuticals?
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ethylene
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the reactions of ethylene are largely determined by what property
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their highly reactive double bond
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how is ethylene produced
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by the catalytic cracking of some of the fractions seperated during petroleum refining
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what kind of reaction involves the addition of atoms or groups of atoms across a double or triple bond
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addition reaction
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is ethane saturated or unsaturated
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saturated
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is propene saturated or unsaturated
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unsaturated
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ethylene + hydrogen ->
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ethane
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ethylene + halogen ->
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dihaloethane
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ethylene + water ->
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ethanol
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ethylene + water > ethanol is what type of reaction
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hydration
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what can bromine water tell us
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whether a substance is an alkene or alkane
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what are the three stages of polymerisation
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initiation, propagation, termination
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what are six factors that affect the properties of a polymer
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length of chain, arrangement of chains, degree of branching from chain, functional groups in monomers, inclusion of additives, cross-linking between polymer chains
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what is LDPE
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low density polyethylene
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what are 3 properties of LDPE
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branching chains, light, flexible
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what are properties of HDPE
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little branching, hard, brittle
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what polymer is used to make styrofoam cups
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polystyrene
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what monomer makes cellulose
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glucose
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what is the most abundant polymer on earth
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cellulose
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what is a biopolymer
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a naturally occuring polymer produced by living organisms
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give some examples of biopolymers
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silk, rubber, wool, hair
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name three newly developed biopolymers
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polyhydroxyalkanoates (PHA)
polylactic acid (PLA) cyclodextrins (CD) |
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what are polyhydroxyalkonates (PHA)s ?
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'naturall occuring plastics' are similar to synthetic plastics currently in use such as polypropene
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what is an advantage of PHAs
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they are biodegradable
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outline briefly the steps in the creation of PHAs
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grow bacteria in vats, fed them molasses, break bacteria's cell walls, seperate the plastics form the cell debris
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