Chapter 21
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Saturated compound | Contain no double or triple bonds
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| Unsaturated bonds | Contain at least 1 double or triple bond
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| Alkane | Contain only single bonds. Only made up with carbon + hydrogen
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| Homologous Series | A series of uniform chemical type, show a graduation in physical properties, have general formula, have a similar method of preparation, each member differs from the previous by CH2 unit
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| Structural isomers | compounds with the same molecular formula but different structural formula
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| Alkene | Contain 1 double bond. Only made up with hydrogen and carbon
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| Alkyne | Conation 1 triple bond. Only made up of Carbon and hydrogen
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| Aliphatic compound | open chains of carbon atoms and closed rings that resemble them in chemical properties
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| Aromatic Compounds | Counds that conatain a benzene ring structure in their molecules
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| Octane Number | A measure of the tendancy of the fuel to resist knocking with 100 being 2,2,4-trimethylpentance and 0 being heptane
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| Catalytic cracking | the breaking down of long chain molecules into shorter chain molecules
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| Isomerisation | Using heat to forse branching on shorter chains
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| Heat of reaction | the heat change when the moles of the reactants indicated are compleatly reacted
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| Heat of Combustion | the heat change when one mole of the substance is compleatly burned in excess oxygen
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| Kilogram Calorific Value | the heat energy produced when 1kg of fuel is compleatly burned in oxygen
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| Bond Energy | The energy required to break one mole of covelant bonds and to separate the neutral atoms compleatly from each other
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| Heat of neautralisation | the heat change when one mole of H+ ions react with one mole OH- ions
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| Heat of formation | The heat that takes place when one mole of a compound in its standard state is formed from its elements in their stard state
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| Hess's Law | When chemical reaction happens in a number of defferent stages the sum of the heat changes in the separate stages is equal to the heat change if the reaction is carried out in one stage
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| Law of conservation of energy | Energy cannot be created or destroyed but can only be converted from one energy into another
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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