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Turn your chemistry notes into addition reaction flashcards

Upload a PDF, slide deck, set of notes, or a photo of your textbook page. Get flashcards for reagents, products, and mechanisms, then review them on a spaced repetition schedule.

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How to study addition reactions with flashcards

Addition reactions are where many organic chemistry courses stop feeling like memorization and start feeling like pattern recognition, because the same few reagents keep showing up with different alkenes and alkynes. Good addition reaction flashcards make that pattern visible: one card for the reagent, one for the product, and one for the rule that decides which carbon gets which atom.

  • Write one card per reagent, such as HBr, Br2, H2 with a metal catalyst, or H2O with an acid catalyst.
  • Include the product structure or name on the back, plus the regiochemistry or stereochemistry rule that applies.
  • Make separate cards for Markovnikov and anti-Markovnikov conditions so the two outcomes do not get mixed up.
  • Review cards in short daily sessions instead of one long session the night before the exam.
Example addition reaction flashcards for organic chemistry
What is an addition reaction?A reaction in which two atoms or groups add across a multiple bond, such as a C=C double bond, so the molecule gains atoms and no atoms are eliminated.
What is the major product when HBr adds to propene?2-bromopropane, because H adds to the carbon with more hydrogens and Br adds to the more substituted carbon, following Markovnikov's rule.
What happens in catalytic hydrogenation of an alkene?H2 adds across the C=C bond with a metal catalyst such as Pt, Pd, or Ni, and the alkene becomes an alkane. The addition is syn, so both hydrogens add to the same face.
What is the product when Br2 adds to ethene?1,2-dibromoethane, formed through a bromonium ion intermediate, so the two bromines add to opposite faces (anti addition).
How does acid-catalyzed hydration of an alkene work?Water adds across the C=C bond with an acid catalyst such as H2SO4, giving an alcohol where the OH goes to the more substituted carbon (Markovnikov addition).
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Built from your own material

Flashcards come from the lecture slides, notes, or textbook pages you upload, so they match what your instructor actually covers.

Spaced repetition

Cards you miss come back sooner, and cards you know move further apart, so reagent and product patterns stick before the exam.

Photos of pages work too

Snap a picture of a reaction table or a worked example and the text is read with recognition, so handwritten or printed content can become cards.

How it works

Upload your material

Add a PDF, DOCX, PPTX, plain text notes, or images of pages covering addition reactions.

Generate your cards

DeckOwl creates question and answer flashcards for reagents, products, and reaction conditions.

Study on a schedule

Review in the browser with spaced repetition, and export to Anki or CSV on a paid plan.

Focus on the questions that exam problems actually ask. Which halogen adds across a double bond, whether the addition is syn or anti, which product forms under Markovnikov control, and when hydrogenation needs a metal catalyst. Keep each card to one idea so you can test yourself quickly, and sort missed cards into a separate deck so you return to them more often.

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Frequently asked questions

How many flashcards should I make for addition reactions?

A focused set of 20 to 40 cards usually covers the main reagents, products, and rules for a typical course unit. Add more only when a reaction type keeps showing up in your practice problems.

What should each addition reaction flashcard include?

Put the reactant and reagent on the front and the product, its stereochemistry, and the governing rule on the back. Keep each card to one reaction so you can recall it in a few seconds.

Can I export DeckOwl flashcards to Anki?

Yes, Anki export is included on the Plus and Pro plans, along with PDF, DOCX, and CSV export. The free plan lets you study flashcards in the browser but does not include exports.

Is there a free plan to try it?

Yes, the free plan includes 3 generations per month with browser study, and no credit card is needed to start. Students can get 40% off paid plans with a school email.

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