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The 84 pages that link to Chemical formula, each with the reason it gives.

• Oxidation stateRelated: The sum of oxidation states must match the charge shown or implied by a formula.

• Ionic compoundRelated: An ionic formula gives the simplest ratio of ions that makes the compound electrically neutral.

• Chemical elementRelated: Element symbols show which kinds of atoms make up a compound.

• WaterRelated: The formula H₂O records water’s two-to-one ratio of hydrogen to oxygen atoms.

• Molecular formulaNarrower topic: Molecular formulas are one kind of chemical formula.

• StoichiometryRelated: Formulas encode the elemental proportions used in compound calculations.

• IUPAC nomenclatureRelated: Formulae and systematic names encode related information in different formats.

• Hydrogen peroxideNarrower topic: The formula H₂O₂ distinguishes hydrogen peroxide from water, H₂O.

• Molar massRelated: Its element counts determine which atomic masses contribute to the total.

• Conjugate acid–base pairRelated: Comparing formulas and charges reveals whether two species differ by one proton.

• John DaltonRelated: Dalton’s atomic symbols and proposed formulas were early attempts to depict compound composition.

• Chemical nomenclatureRelated: Formulas provide the composition that many systematic names express.

• Octet ruleRelated: A formula constrains which atom ratios can satisfy common ionic or covalent valence patterns.

• Chemical equationBroader topic: Formulas identify each reactant and product in an equation.

• Jöns Jacob BerzeliusRelated: His notation made formulas compact and readable across languages.

• Polyatomic ionRelated: Parentheses in formulas mark multiple copies of a polyatomic ion, as in Ca(NO₃)₂.

• Chemical symbolRelated: Chemical symbols combine in formulas to represent compounds and elemental substances.

• Crystal waterRelated: Hydrate formulas use a dot and a water count to express crystal-water proportions.

• AnionRelated: Formulas show anionic charge with a superscript, as in Cl⁻ or SO₄²⁻.

• Salt (chemistry)Related: Salt formulas encode the simplest ratios that make total charge zero.

• Empirical formulaNarrower topic: An empirical formula is the simplest-ratio form of chemical formula notation.

• Relative atomic massRelated: Relative atomic masses combine with formula subscripts to calculate molecular and formula masses.

• InosilicateRelated: Inosilicate formulas reflect the oxygen sharing and repeating ratios of their chains.

• Xenon hexafluoroplatinateNarrower topic: The conventional name and formula can conceal a complex, variable reaction product.

• Ammonium sulfateRelated: (NH₄)₂SO₄ records the salt's two ammonium ions for each sulfate ion.

• Potassium carbonateNarrower topic: K₂CO₃ records the two potassium atoms for each carbonate group.

• Potassium chlorateRelated: KClO₃ encodes one potassium ion for each chlorate ion.

• Sodium acetateRelated: CH₃COONa expresses sodium acetate’s composition; hydrated crystals include water in the formula.

• Chemical compoundRelated: Formulas encode the fixed elemental proportions that identify a compound.

• Chemical element namingCompared with: Formulas combine element symbols to represent compounds, rather than naming elements themselves.

• Law of definite proportionsRelated: A compound’s formula specifies the atom ratio underlying its mass proportions.

• Magnesium chlorideRelated: MgCl₂ encodes the one-to-two ratio of magnesium to chlorine.

• Magnesium hydroxideRelated: Mg(OH)₂ shows that each magnesium ion pairs with two hydroxide ions.

• Potassium sulfateNarrower topic: K₂SO₄ shows that each formula unit contains two potassium atoms for every sulfate group.

• Chemical compositionRelated: Formulas compactly encode elemental identities and ratios.

• Dalton's atomic theoryBroader topic: Dalton’s atomic combinations made formulas a compact way to represent compound composition.

• Lead(II) ionRelated: The notation Pb²⁺ encodes lead’s identity and its two-unit positive charge.

• Lithium chlorideNarrower topic: The formula LiCl expresses the one-to-one ratio of lithium and chloride ions.

• Potassium bicarbonateRelated: KHCO₃ records one potassium, one hydrogen, one carbon, and three oxygen atoms per formula unit.

• EthanolamineRelated: Ethanolamine’s formula, C₂H₇NO, summarizes its elemental composition.

• Law of multiple proportionsRelated: Formulas reveal the atom-count ratios behind a compound’s mass composition.

• Potassium bromideRelated: KBr expresses the one-to-one ratio of potassium to bromine in the compound.

• Potassium perchlorateRelated: KClO₄ records the one-to-one ratio of potassium and perchlorate ions.

• Stanislao CannizzaroRelated: Cannizzaro’s distinctions made formulas more consistent across competing chemical conventions.

• IUPAC nomenclature of inorganic chemistryRelated: Formulae supply the composition that many inorganic names express.

• Potassium oxideNarrower topic: K₂O's subscript records the two-to-one potassium-to-oxygen ratio.

• Arsenic pentoxideNarrower topic: As₂O₅ specifies two arsenic atoms for every five oxygen atoms.

• Butyl acetateRelated: The formula C₆H₁₂O₂ captures the atom counts shared by butyl acetate’s structural isomers.

• Lead(II) iodideRelated: The subscripts in PbI₂ encode the one-to-two ratio of lead to iodine.

• Potassium iodateNarrower topic: KIO₃ specifies one potassium, one iodine, and three oxygen atoms per formula unit.