Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chemistry
Crude oil flash cards
| Question | Answer |
|---|---|
| What is crude oil a mixture of? | Hydrocarbons |
| What are hydrocarbons made of? | Hydrogen and carbon atoms only |
| What is the process that separates crude oil | Fractional distillation |
| Short chain carbon atoms rise to the top or the bottom of the distillation tube? | Top |
| What are the short chain molecules used for at the top of the distillation tube? | Fuels |
| What are the properties of short chain hydrocarbons? | Low boiling point Light in colour Easy to ignite Runny |
| What are properties of long chain hydrocarbons? | High boiling point Dark in colour Hard to light Thick |
| What are the long chain hydrocarbons used for? | Ships fuel, roads and roofing |
| What’s the name of the fraction that is used for road coverings? | Bitumen |
| What are alkanes? | Saturated hydrocarbons |
| What does ‘saturated’ mean? | Single bonds only |
| What is the general formula for alkanes? | CnH2n+2 |
| What is the name of the alkane with 1,2,3,4,5 and 6 carbon atoms in their molecular formula? | 1= methane, 2= Ethane, 3= propane, 4=Butane, 5= pentane, 6= Hexane |
| What does the term unsaturated mean? | Have at least 1 carbon to carbon double bond |
| What are alkenes? | Unsaturated hydrocarbons |
| What is the name of the alkene with 1,2,3,4,5 and 6 carbon atoms in their molecular formula? | 2= Ethene, 3= propene, 4=Butene, 5= pentene, 6= Hexene |
| What are alkenes used for? | making plastics |
| What is an isomer? | compounds with the same chemical/molecular formula but different structure (arrangement of atoms) |
| What is an addition reaction? | involve adding two atoms across the c=c bond in an unsaturated compound, forming a saturated compound |
| What can bromine water test for? | alkanes, alkenes |
| What colour does bromine water go in alkane and alkene solutions? | alkene= colourless alkane= brown/orange |
| What are polymers? | large molecules formed by the combination of many smaller molecules called monomers |
| What happens during an addition polymerisation reaction? | The double bonds in the alkenes break to leave single bonds, the monomers then join together to form a very long chain called a polymer |
| What is cracking? | A process that involves heating the hydrocarbons in a long chain alkane to break them into smaller chain molecules |
| why are smaller chain alkanes more useful? | They are used as fuels that burn easier |
| What does the term non-renewable mean? | A source of energy that cannot be recycled/grown, once used it it cannot be used again |
| What are the 3 main components of the fire traingle? | oxygen, fuel and heat |
Created by:
willum
Popular Chemistry sets