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Turn your alkene chapter into flashcards on addition reactions

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Why custom alkene addition flashcards beat generic sheets

Printable alkene addition reactions flashcards are easy to find, but they rarely match the reagents, examples and mechanisms your professor used in class. Generating cards from your own lecture slides or textbook pages keeps the set aligned with your exam.

  • Halogenation and halohydrin formation: anti addition through a bromonium ion
  • Hydrohalogenation and hydration: Markovnikov rules and carbocation stability
  • Hydroboration-oxidation and oxymercuration: anti-Markovnikov versus Markovnikov outcomes
  • Hydrogenation and ozonolysis: syn addition and the products of alkene cleavage
Example alkene addition reactions flashcards
What product forms when HBr adds to propene without peroxides?2-bromopropane. H adds to the carbon that already has more hydrogens and Br goes to the more substituted carbon, because that route forms the more stable secondary carbocation.
What stereochemistry results from adding Br2 to cyclohexene?Anti addition, giving trans-1,2-dibromocyclohexane, because the bromonium ion is opened by backside attack.
What regiochemistry does hydroboration-oxidation give?Anti-Markovnikov, with the OH on the less substituted carbon, because boron adds to the less hindered carbon in a syn addition.
What products form when an alkene is cleaved by ozonolysis with a reductive workup?Aldehydes or ketones, with each alkene carbon becoming a C=O. A reductive workup such as dimethyl sulfide keeps aldehydes from oxidizing to carboxylic acids.
Which catalyst is used for syn hydrogenation of an alkene with H2?Palladium on carbon (Pd/C) or platinum. Both hydrogens add to the same face of the alkene because the reaction happens on the catalyst surface.
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Upload PDF, DOCX, PPTX, plain text or photos of pages. Text recognition reads the pages and turns each reaction into cards.

Spaced repetition

Cards return at the intervals where you are most likely to forget them, so reagents and regiochemistry stay in memory before the exam.

Quizzes and mind maps too

Test yourself with multiple choice, true or false and short answer questions that include explanations, or map Markovnikov, anti-Markovnikov and syn addition on one page.

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Upload your notes

Add a PDF, slides, plain text or a photo of the alkene section from your course.

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Get cards for each reaction, covering reagents, products, regiochemistry and stereochemistry.

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Review in the browser on the free plan, which includes 3 generations per month and no credit card to start.

Alkene addition is easiest to learn as a set of rules rather than isolated reactions. Each card can ask for the reagent, the product, the regiochemistry (Markovnikov or anti-Markovnikov) and the stereochemistry (syn or anti), so you practice the pattern instead of memorizing one answer.

Once the cards are generated, spaced repetition brings back the reactions you miss most often, such as bromonium ion opening or hydroboration regiochemistry, until they feel automatic.

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Frequently asked questions

How many alkene addition flashcards should I make for organic chemistry?

Make at least one card for each reagent and product pair from each lecture, plus separate cards for regiochemistry and stereochemistry. Reviewing the same reaction across several cards builds recall better than one card with a single answer.

Which alkene addition reactions do I need to memorize most?

Hydrohalogenation, halogenation, hydration, hydroboration-oxidation and catalytic hydrogenation appear on most organic chemistry exams. Focus on which face the new bonds add to and which carbon gets the new group, since those decide the product.

Can I export these flashcards to Anki?

The free plan lets you study flashcards in the browser but does not include exports. The Plus plan adds PDF, DOCX, Anki and CSV export, so you can move your cards into Anki if you prefer it.

Is there a discount for students?

Yes, students get 40% off with a school email. You can start without a credit card.

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