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Sec 3–4 (O-Level / SEC) · Science · Beta

Chemistry support that helps you work it out

MOE/SEAB Pure Chemistry (6092 / SEC K324): experimental chemistry, atomic structure and bonding, stoichiometry and the mole concept, electrolysis, energetics, rate and redox, acids, bases and qualitative analysis, the Periodic Table, metals and organic chemistry.

9 tracked MOE/SEAB skills, from experimental chemistry and separation techniques to organic chemistry and polymers. The tutor asks focused questions, you test the next step, and the understanding stays yours.

Beta subject: Chemistry uses a domain-specific Socratic rubric and is currently marked Beta while we benchmark its scaffolding across full Sec 3–4 (O-Level / SEC) papers.

9 tracked syllabus skills5-level Socratic hint ladderMOE/SEAB Syllabus CHE
Syllabus Skills

What a chemistry tutor covers

Each skill is tracked separately so strong chapters never mask a shaky prerequisite.

  1. 1

    Experimental chemistry and separation techniques

    Foundation skill

    Select apparatus for gas collection and drying, and purify mixtures by filtration, crystallisation, distillation and paper chromatography.

  2. 2

    Kinetic particle theory and atomic structure

    Foundation skill

    Explain heating/cooling curves, deduce protons, neutrons and electrons in atoms and ions, and write electronic configurations.

  3. Draw dot-and-cross diagrams for ionic, covalent and metallic substances and relate structure and bonding to physical properties.

  4. 4

    Chemical equations, stoichiometry and the mole concept

    Builds on Chemical bonding and structure

    Write balanced chemical and ionic equations with state symbols, and calculate moles, molar gas volume, limiting reactants, concentration and yield.

  5. Predict selective discharge at electrodes in molten and aqueous electrolytes, and interpret enthalpy profile diagrams and bond energy calculations.

  6. Use collision theory to explain rate graphs, and identify oxidation and reduction by oxygen/hydrogen, electron transfer and oxidation state.

  7. Explain reactions of acids, bases and oxides, select methods for preparing soluble/insoluble salts, and identify cations, anions and gases.

  8. 9

    Organic chemistry and polymers

    Builds on Chemical bonding and structure

    Compare homologous series (alkanes, alkenes, alcohols, carboxylic acids, esters) and explain cracking, addition polymerisation and condensation polymerisation.

Illustrative Dialogue

How a chemistry session unfolds

The student starts by asking for the answer—and ends up solving the key step themselves.

TranscriptIllustrative Chemistry dialogue
  1. Student

    Can you balance C₃H₈ + O₂ → CO₂ + H₂O? I’ve been stuck for ten minutes.

  2. Tutor

    Let’s use those ten minutes rather than replace them. Start with carbon, because C₃H₈ locks its number in. How many carbons go in, and therefore how many CO₂ come out?

  3. Student

    Three going in, so 3 CO₂. That gives six oxygens on the right, plus whatever the water uses.

  4. Tutor

    Right. Hydrogen is the other locked number — eight of them in C₃H₈ means how many H₂O? Then count the oxygens those waters add, and say what is left for the O₂ to supply.

  5. Student

    8 H means 4 H₂O. That’s 6 + 4 = 10 oxygens on the right, so 5 O₂. So it’s 1, 5, 3, 4.

  6. Tutor

    You got there on your own. Check it properly: count every atom on both sides and write the totals down. Then tell me what it means that we write the C₃H₈ coefficient as nothing at all.

About this illustrative example

This walkthrough is an illustrative script written to show how the five-level hint progression works in Chemistry, not a transcript from a real student account.

Hands-on practice

Have a chemistry question right now?

Bring your own school worksheet problem or test our interactive whiteboard with zero login required.

Progress & Family View

How skill progress is recorded

Sessions build a clear skill record for the student and a calm, read-only summary for linked parents.

  • One bar per skill

    Mastery is tracked skill by skill, not as a single subject percentage, so a strong topic cannot hide a weak one.

  • The hint level counts

    Getting something right with one small hint moves the bar more than getting it right after five. The number we show you reflects how much help you needed.

  • Built from an event log

    Every attempt, hint and explanation is recorded as an event, and the bars are calculated from that history. It can be replayed, which means the numbers are reproducible rather than asserted.

  • A parent sees the same numbers

    A linked parent gets the same skill bars, the last judgement and its line of evidence behind each level, the recent session summaries and the flag counts — read-only, and nothing that is not also on your own pages.

9 skill bars, tracked independently

In chemistry, that means 9 separate skill bars — experimental chemistry and separation techniques, kinetic particle theory and atomic structure, chemical bonding and structure, and the rest — each updating based on verified problem steps. Linked parents see the same topic bars and session takeaways in read-only mode.

Questions & Answers

Chemistry FAQs

Common questions from students and parents about studying this subject on tutor.ai.

Can it balance equations for me?

No. It asks which element to fix first and which to leave until last, then checks your atom and charge count on both sides.

I keep losing marks on the mole concept and stoichiometry.

Usually that means the balanced equation came first and the mole ratio came second. The tutor works that order with you and asks you to justify each step, including limiting reactants and percentage purity.

Which Chemistry topics are covered?

Aligned to Singapore O-Level / SEC Pure Chemistry (6092). Nine skills, in syllabus order: Experimental chemistry and separation techniques; Kinetic particle theory and atomic structure; Chemical bonding and structure; Chemical equations, stoichiometry and the mole concept; Electrolysis and energy from chemicals; Speed of reaction and redox; Acids, bases, salts and qualitative analysis; The Periodic Table and reactivity series of metals; and Organic chemistry and polymers.

Does it use my textbook’s method?

It uses the method you bring and asks why it works. It will not claim to know your textbook or your teacher’s marking scheme.

Bring your chemistry question

Free during testing, with no credit card required.