Water contains two hydrogen atoms bonded to one oxygen atom.
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H₂SO₄Chemical Formula FormatterTurn plain or Unicode notation into copyable chemical formatting.Format a formula →2H₂ + O₂Chemical Equation BalancerBalance a known equation with exact whole-number coefficients.Balance an equation →H₂OChemical Formula ReferenceSearch and copy formulas and compound details from the catalog.Browse formulas →
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Carbon dioxide contains one carbon atom and two oxygen atoms.
Sulfuric acid contains hydrogen, sulfur, and oxygen.