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Turn your chemistry notes into a reactions quiz with AI

Not a generic quiz bank. Upload your chemistry notes or slides and get questions on the reactions in your own course, each with an explanation.

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How a reactions quiz helps you recognize reaction types

Balancing equations is the easy part of chemistry reactions; recognizing the reaction type in a new problem is where most students lose points. A chemistry reactions quiz built from your own lecture slides or notes lets you practice that recognition on the exact examples your instructor uses.

Synthesis, decomposition, single replacement, double replacement and combustion questions
Balancing equations and predicting products from a given list of reactants
Explanations that show why a reaction fits its type
Free to start with 3 generations per month and no credit card needed

Example chemistry reactions quiz questions with answers

What type of reaction is 2H2 + O2 → 2H2O?Synthesis (combination). Two reactants combine into a single product.

What type of reaction is CaCO3 → CaO + CO2 when heated?Decomposition. One compound breaks down into two or more simpler substances.

True or false: in a balanced chemical equation, the total mass of reactants equals the total mass of products.True. Conservation of mass means atoms are rearranged, not created or destroyed.

In Zn + 2HCl → ZnCl2 + H2, what type of reaction occurs?Single replacement. Zinc displaces hydrogen from hydrochloric acid.

Is the combustion of methane, CH4 + 2O2 → CO2 + 2H2O, exothermic?Yes. It releases heat and light, which is typical of combustion reactions.

Generate the full set

Questions from your material

Upload a PDF, DOCX, PPTX, plain notes or photos of textbook pages, and get questions based on the reactions your course covers.

Three question formats

Multiple choice, true/false and short answer questions, each with an explanation of why the correct answer fits.

Study in the browser

The free plan lets you take the quiz online. Paid plans add export to PDF, DOCX and other formats for your class.

How it works

Upload your material

Add a chapter PDF, slide deck, DOCX file or photos of your notes.

Choose question types

Pick multiple choice, true/false or short answer, or mix them in one quiz.

Answer and review

Check each answer, read the explanation, and retry the questions you missed.

DeckOwl reads PDFs, DOCX and PPTX files, plain notes and photos of pages, then writes multiple-choice, true/false and short answer questions. Each answer comes with an explanation, so a wrong pick shows you why the products form instead of just marking it wrong.

Work through the set once, then review the missed questions a day or two later. Pairing the quiz with flashcards that use spaced repetition helps you keep reaction products and conditions in memory.

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Frequently asked questions

How should I practice for a chemistry reactions quiz?

Start with a short set that covers each reaction type, then repeat only the questions you missed. Mixing types helps you identify a reaction from its reactants rather than from the order of topics in a chapter.

What is the difference between synthesis and decomposition reactions?

Synthesis combines two or more substances into one product, while decomposition breaks one compound into two or more simpler substances. Counting reactants and products is a quick way to tell them apart.

Can I export my chemistry quiz?

Yes, on paid plans. Plus at $39/year or $7.99/month includes PDF and DOCX export, and Pro adds QTI 2.1 and Moodle XML for learning management systems.

Does the free plan include quizzes?

The free plan includes 3 generations per month and lets you study in the browser, but exports require a paid plan. No credit card is needed to start.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.