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28 Cards in this Set
- Front
- Back
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What is used for the backing of carpet? |
Polypropylene |
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What is a fuel |
A substance that burns giving out energy |
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Is oxygen needed for burning? |
Yes |
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What is another name for burning? |
Combustion |
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What happenes when an element burns? |
Combines with oxygen in the air to form the relevant oxide |
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What do hydrocarbons contain? |
Carbon and hydrogen |
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What happenes when a hydrocarbon is burned in a plentiful supply of air? |
It forms carbon dioxide and water |
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What happenes when you add carbon dioxide to lime water? |
It for milky |
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If the air is limited what can occur and what can be formed? |
Incomplete combustion occurs and carbon monoxide is formed |
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What is carbon monoxide |
A toxic gas that can also be formed when plastics are burned |
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When we're fossil fuels formed? |
Millions of years ago and are non-renewable or finite e.g coal gas and oil |
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What is the process of fractional distillation |
Crude oil is processed before it can be user,crude oil is separated into a number of fractions according to their different boiling points. |
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What are the hydrocarbons? |
Alkane Alkene Cycloalkane |
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How can you tell if It is a alkane? |
No carbon double bonds Straight chain Prefix-ane |
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How can you tell if it is an alkene |
1 c=c bond Straight chain Prefix-ene |
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How can you tell if it a cycloalkane |
No c=c bond Carbons are joined in a cyclic maner Cycloprefix-ane |
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What are the prefixs? |
Meth-1 Eth-2 Prop-3 But-4 Pent-5 Hex-6 Hept-7 Oct-8 |
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How can you tell if it is an alkane or an alkene? |
Add bromine water sample of each in a test tube and shake the tubes. The alkene will discolourise quickly where as the alkane will take more time |
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Alkenes are monomers that used to make plastics in a chemical reaction what is this knows as? |
Polymerisation |
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The names are derived for the monomer what is the prefix? |
Poly |
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What plastics don't follow this rule? |
Kevlar Biopol Bakelite Polyethyne Polyethanol |
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What is kevlar used for? |
Stab proof vests |
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What is the use of biopol |
Biodegradable plastic |
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What is a use for bakelite |
Light switches |
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What us a use for polyethanol |
Soluble in water |
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What us a use for polyethyne |
Conducts electricity |
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A thermosetting plastic cannot be? |
Reshaped on heating |
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A thermos , plastic polymer can be? |
Melted and reshaped many times |
