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One missing bond or reaction condition can change an organic chemistry answer. Create flashcards from readable course notes, then check the structures and conditions before studying the cards. Use written reaction practice alongside them.
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View current plans in MemoriziteEthanol, CH₃CH₂OH, is an alcohol containing a hydroxyl group. Ethane is an alkane and ethene is an alkene. CH₃CH₂CH₃ is propane. Ethanol and dimethyl ether share the molecular formula C₂H₆O but have different atom connectivity. In alkene hydrogenation, hydrogen adds across a carbon–carbon double bond to form an alkane under suitable catalytic conditions.
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Flashcard 1 · Functional groups
A hydroxyl group attached to a saturated carbon; ethanol is an alcohol.
The connectivity matters. A formula containing oxygen alone does not establish that a compound is an alcohol.
Flashcard 2 · Hydrocarbon classes
Ethane has a single carbon–carbon bond; ethene has a carbon–carbon double bond.
Ethane is an alkane, C₂H₆. Ethene is an alkene, C₂H₄. Both contain only carbon and hydrogen.
Flashcard 3 · Nomenclature
Propane.
The chain has three carbon atoms and only single carbon–carbon bonds. The name combines the three-carbon stem with the alkane ending.
Flashcard 4 · Isomerism
They have the same molecular formula, C₂H₆O, but different atom connectivity.
This is a structural difference, not merely two drawings of the same connected molecule.
Flashcard 5 · Reaction concepts
The carbon–carbon double bond becomes a single bond, and one hydrogen is added to each carbon.
The net equation is C₂H₄ + H₂ → C₂H₆. This describes a reaction concept, not a practical laboratory procedure.
Keep a compound’s name beside its condensed formula and the explanation of the relevant functional group. A skeletal diagram can lose information during extraction, including wedges, charges or a bond order. The app does not add a molecule editor or guarantee chemical structure recognition; check the source figure when a card depends on it.
Start by identifying the functional group, then practise the naming convention covered in your course. The propane example is deliberately simple. More complex structures require a parent chain, substituent positions and sometimes stereochemical information; retain those details in the source rather than guessing from an incomplete extracted name.
Preserve reactant, reagent, conditions and product when they appear in your notes. A reaction family is not a guarantee that every substrate gives the same product. Compare atom counts and connectivity before practising a generated equation. This is conceptual revision, not a synthesis plan or laboratory safety instruction.
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