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Turn your class notes into flashcards and a quiz

Upload a PDF, slides, a DOCX or photos of handwritten pages. DeckOwl builds flashcards with spaced repetition plus multiple-choice, true/false and short-answer questions with explanations.

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Why turn notes into study tools in one pass

Most students already have the material they need, buried in lecture slides, a textbook PDF or a page of handwritten notes. The slow part is converting it into study tools. DeckOwl reads your file and turns notes into flashcards and quizzes in one pass, so you spend your time practicing instead of formatting.

Flashcards are drafted from your own notes, not a generic deck.
Quiz questions include multiple-choice, true/false and short-answer formats.
Every question comes with an explanation of the correct answer.
Free plan covers 3 generations per month and browser study.

Example acids and bases flashcards and quiz questions

What is the pH of a neutral solution at 25 °C?7. Pure water at 25 °C has equal hydrogen and hydroxide ion concentrations, so pH equals pOH.

Is HCl a strong or weak acid in water?Strong. It dissociates almost completely into H+ and Cl− in water, so Cl− has negligible basicity.

True or false: a Brønsted–Lowry base accepts protons.True. A base is a proton acceptor and an acid is a proton donor, as in NH3 + H2O → NH4+ + OH−.

What is the conjugate base of HF?F−. Removing one proton from HF leaves the fluoride ion.

In a titration, what is the equivalence point?The point where moles of acid and base have reacted in the balanced-equation ratio. The pH there depends on the salt formed and is not always 7.

Generate the full set

Flashcards with spaced repetition

Cards are drafted from your material and scheduled so you review the ones you are about to forget.

Quizzes with explanations

Multiple-choice, true/false and short-answer questions each come with a reason for the correct answer.

Works from messy sources

Read text from PDFs, DOCX, PPTX, plain notes and photos of pages, including handwriting that is legible enough for text recognition.

How it works

Upload your notes

Drop in a PDF, slide deck, Word file, pasted text or a photo of your page.

Choose cards, quiz or both

Pick flashcards, a quiz with question types you want, or generate both from the same material.

Study in the browser

Work through the cards and quiz, then review the explanations for any answers you missed.

Acids and bases shows why a mix matters. A unit like this combines definitions, pH calculations and reaction types, so a deck that only asks for definitions leaves gaps. Generated quizzes ask you to apply the Brønsted–Lowry definition or identify the equivalence point in a titration, and the explanation shows why each wrong option fails.

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Frequently asked questions

How many flashcards should I make for an acids and bases unit?

Aim for one card per definition, rule and reaction type, which usually means 40 to 80 cards for a full unit. Fewer cards tend to hide gaps, and more cards become hard to review daily.

How do I study acid-base titration questions effectively?

Work out the mole ratio from the balanced equation before reading the pH, then check whether the salt formed changes the equivalence point. Explaining each step out loud helps it stick.

Can I export my quiz to Moodle XML?

Moodle XML and QTI 2.1 export are on the Pro plan at $14.99 per month. The Plus plan at $39 per year or $7.99 per month includes PDF, DOCX, Anki and CSV export.

Do I need a credit card to try it?

No. You can start on the free plan with 3 generations per month and study in the browser, with no card required.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.