Term
| What is organic chemistry? |
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Definition
| Organic Chemistry is the chemistry of the carbon compounds. |
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Term
| Why is carbon important in organic chemisry? |
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Definition
| Because it can form chains. |
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Term
| What is a homologus serie? |
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Definition
| A group of chemical compunds that have the same chemical properties, the same general formula, and they show a steady change in their physiscal properties as we go along the group. |
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Term
| What is the general formula of alkanes? |
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Definition
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Term
| Name the first 10 alkanes. |
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Definition
| Methane, ethane, propane, butane, pentane, hexane, heptane, octane, nonane, decane. |
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Term
| How is crude oil separated into compounds? What properties on the compounds allow us to separate them? |
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Definition
1- Fractional Distillation
2- Their boiling point. |
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Term
| What are the 2 properties of alkanes? |
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Definition
1- they are not very reactive but they burn easily.
2- Cracking. Heat and a catalyst can break bigger molecules into small ones. |
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Term
| Why is cracking in alkanes important? |
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Definition
| Because it makes usefull small molecules from less valuable ones, and it makes alkenes. |
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Term
| What is the general formula of alkenes. |
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Definition
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Term
| What is the functional group of alkenes? |
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Definition
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Term
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Definition
| Compounds with the same molecular formula but different structural formulas. |
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Term
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Definition
| Dissolving the alkene with bromine. Because alkenes will decolourize the solution |
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Term
| Mention properties in plastics that make them useful. |
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Definition
| Easy to shape, flexible, good insulators, low density, easily coloured, cheap to produce. |
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Term
| What are disadvantages of using plastics? |
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Definition
| They are non-biodegradeable, and they can also harm wild life. |
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Term
| What does burning fossil fuels cause? |
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Definition
| Formation of CO2 and global warming, formation of S02 and acid rain, fossil fuels will run out, pollution from oil spill. |
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Term
| What is the general formula of alcohol. |
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Definition
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Term
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Definition
| From ethene and steam, or by frementation. |
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Term
| What is the formula when ethanol is made from ethene and steam? |
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Definition
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Term
| what is the formula of making ethanol by fermentation? |
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Definition
| C6H12O6--->2C2H5OH+2CO2 ( fermentation also needs enzymes from yeast) |
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Term
| What are the short term problems due to alcohol consumption? |
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Definition
| Loss of coordination. Alcohol can be a poison. Headache, sickness, vomits, etc. Antisocial behaviour. |
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Term
| Which are the long term problems due to alcohol consumption? |
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Definition
| Damage to most organs of the body. Dependency. Breakdown of families. |
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Term
| What are the reactions of alcohols? |
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Definition
| They burn,oxidation using oxidizing agents, and in condensations reactions. |
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Term
| What are condensations reactions in alcohol used for? |
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Definition
| They can be used to make polyesters. |
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Term
| what comes out of a fractionating column from the top to the bottom? |
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Definition
| Fuel gas, petrol, paraffin, light gas oil, diesel, lubricating fraction, bitumen. |
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