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Formation of water from hydrogen and oxygen

A run whose source recorded neither a yield nor conditions, as recorded by Curated fixture record. The written procedure is below.

verified record, From Curated fixture record

Reagents, catalysts and solvents are in the table below.

The atoms, from reactants to products

HHHHOO
Reactants · 1/6
breakingformingbond order changesmapped atom that changes

Drawn from the record's atom map: which bonds break and which form between the reactants and products the source listed. It shows a change in connectivity, not a simulated trajectory and not a mechanism.

What was in the flask

RoleSpeciesFormulaYield
ReactantHydrogenH₂—
ReactantHydrogenH₂—
ReactantOxygenO₂—
ProductWaterH₂ONot recorded
ProductWaterH₂ONot recorded

Conditions

Requires ignition (spark or flame); highly exothermic.

Only the dimensions the source stated are listed. Anything absent here was not recorded, and it is not inferred from what the class usually needs.

Yield

No yield is recorded for this run. The source listed the products without measuring how much of each came out, so there is no number to quote.

Other recorded runs with the same starting material

No other run in the library makes this product. These runs of the same class start from one of the same reactants, which is the nearest company this record has.

Procedure

From the curated record

Two hydrogen molecules and one oxygen molecule combine to form two molecules of water. The H–H and O=O bonds break and four new O–H bonds form. The real reaction proceeds through a radical chain mechanism; the animation shows only the overall change in connectivity.

Safety notes on this record

  • Hydrogen–oxygen mixtures are explosive. This record is for study only.

These are the notes attached to the record. They are not a hazard assessment of your material and not a substitute for reading the source.

The source

No source link is recorded for this record, beyond the name of where it came from: Curated fixture record.

  • Curated textbook reaction (fixture record, not from an ingested dataset).

    fixture · quality high

curated demo record, not from an ingested dataset.

How to read this record

This is one experiment, not a rule. It says that on one occasion these species were combined under these conditions and this came out. It does not say the reaction will give the same result on your substrate, and nothing on the page has been generalised into a claim that it would.

The pathway is a separate question, kept on separate pages. A mechanism here is the canonical arrow pushing for a class, run on real structures and labelled rule-derived. It is not evidence, and this record is not a mechanism.