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Chemical Formulas

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"The Atom"

Chemical Formulas - Chemistry and Compounds
Chemistry is the science of chemical elements and compounds and how these things work together - for more information see the Beginners Guide to Periodic Chemistry. A chemical element contains only one type of atom. If a substance contains more than one type of atom, it is a compound. A compound is a pure chemical substance consisting of 2 or more different elements that can be separated into simpler substances by Chemical Reactions.

Chemical Formulas - Chemical Substances
Chemical substances exist as solids, liquids or gasses (States of Matter). Most elements are solids, only 11 are gases and 2 are liquids. Substances may change between these phases of matter with changes in temperature or pressure. A common example of a chemical substance is pure water.

Chemical Formulas - Chemical Reactions
Chemical reactions convert one chemical substance into another. A common example of a chemical substance is pure water. Changes in temperature can change from a liquid (water) to a solid (ice) to a gas (water vapour / steam).

Chemical Formulas - What is a Chemical Formula?
What is a Chemical Formula? A formula in chemistry is a type of shorthand for representing the elements in a compound. Element Symbols are included on the Periodic Table. Symbols from the periodic table are used for the individual elements. e.g. O for oxygen, H for hydrogen, C for carbon, N for nitrogen, Ca for calcium and Na for Sodium. Substances that have two or more atoms bonded together, and therefore more than one element, are called compounds. See Examples of Compounds.

Examples of Chemical Formulas
Examples of chemical formulas and their meanings are explained in Examples of Chemical Formula and Equations. This page provides examples detailing how to write a formula or equation together with examples and the use of subscripts.

Chemical Formulas - Subscripts
Chemical formulas shows the symbols of the elements in the compound and the ratio of the elements to one another. If a substance contains more than one atom of a particular element, this quantity is indicated in chemical formulas using a subscript number after the chemical symbol.

Chemical Formulas - Examples of the use of Subscripts
The subscript refers only to the element it immediately follows. For example in formulas and equations, the chemical formula for water is H2O which indicates that 2 atoms of Hydrogen combines with 1 atom of oxygen. The chemical formula for sodium chloride is NaCl indicating that one atom of sodium combines with one atom of chlorine in a one-to-one ratio. Subscripts are added, following the element symbol, to indicate that the number of atoms of that element in the compound if it is greater than one. For example, the equation for magnesium bromide MgBr2 which indicates that one magnesium atom combines with two bromine atoms.

Common Chemical Formulas List
The following list shows some of the most common formulas for both elements and compounds.

What is the Chemical Formula for Sodium? Na

What is the Chemical Formula for Water? H2O

What is the Chemical Formula for Glucose? C6H12O6

What is the Chemical Formula for Alcohol? C2H6O

What is the Chemical Formula for Sulfate Group? CaSO4
 
What is the Chemical Formula for Hydrogen Sulfide? H2
S

What is the Chemical Formula for Salt?  NaCl

What is the Chemical Formula for Oxygen molecule? O2

What is the Chemical Formula for Ethanol? C2H6O

What is the Chemical Formula for Vinegar? C2H4O2

What is the Chemical Formula for Ammonia? NH3

What is the Chemical Formula for Magnesium? Mg

What is the Chemical Formula for Acetic Acid? C2H4O2

What is the Chemical Formula for Butane? C4H10

What is the Chemical Formula for Acetate? CH3CO2

What is the Chemical Formula for Nitrate? NO3

What is the Chemical Formula for Copper? Cu

What is the Chemical Formula for Nitrogen molecule? N2

What is the Chemical Formula for Carbon Dioxide? CO2

What is the Chemical for Sulfuric Acid? H2SO4

What is the Chemical Formula for Methane? CH4

What is the Chemical Formula for Sucrose? C12H22O11

What is the Chemical Formula for Propane? C3H8

What is the Chemical Formula for Baking Soda? NaHCO3

What is the Chemical Formula for Fluoride? F

What is the Formula for Fluorine Molecule? F2

What is the Formula for Hydrogen Peroxide? H2O2

Chemical Formula for Caffeine? C8H10N4O2

What is the Formula for Sodium Chloride (Salt)? NaCl

What is the Chemical Formula for Aspirin? C9H8O4

What is the Formula for Hydrochloric Acid? HCl

What is the Chemical Formula for Zinc Nitrate? Zn(NO3)2

What is the Chemical Formula for Carbon Monoxide? CO

What is the Formula for Sodium Hydroxide? NaOH

What is the Formula for Cyanide (Sodium Cyanide)? NaCN

What is the for Cyanide (Calcium Cyanide)? Ca(CN)2

What is the Formula for Gold? Au

What is the Chemical Formula for Iodine? I

What is the Chemical Formula for Tin? Sn

What is the Chemical Formula for Benzene? C6
H6

What is the Formula for Hydrogen Sulfide? H2S

Chemical Formula for Acetone? CH3COCH3

Chemical Formula for Phosphoric Acid? H3PO4

What is the Chemical Formula for Pentane? C5H12

What is the Chemical Formula for Methanol? CH3OH

What is the Chemical Formula for Hydrobromic Acid? HBr

Chemical Formula for Carbonic Acid? H2CO3

What is the Chemical Formula for Titanium? Ti

What is the Chemical Formula for Sodium Hypochlorite? NaClO

What is the Chemical Formula for Ethane? C2H6

What is the Chemical Formula for Ammonium Sulfate? (NH4)2SO4

What is the Chemical Formula for Octane? C8H18

What is the Chemical Formula for Copper Sulfate? CuSO4

What is the Chemical Formula for Cholesterol? C27H46O

What is the Formula for Benzoic Acid? C7H6O2

What is the Formula for Sulfurous Acid? H2SO3

What is the Formula for Galactose? C6H12O6

What is the Formula for Ascorbic Acid? C6H8O6

What is the Formula for Dry Ice? CO2

What is the Formula for Sodium Nitrate? NaNO3

What is the Formula for Calcium Oxide (Quicklime)? CaO

What is the Formula for Iodic Acid? HIO3

What is the Formula for Lactic Acid? C3H6O3

What is the Formula for Magnesium Bromide? MgBr2

What is the Formula for Water Vapor? H2O

What is the Formula for Oxide? No Formula

What is the Formula for Carbon? C

What is the Formula for Hydrogen? H

What is the Formula for Sugar? CnH2nOn

What is the Formula for Sulfate? O4S2-

What is the Formula for Nitrous Oxide? N2O

Formula for Citric Acid? C6H8O7

Formula for Octane? C8H18

Formula for Camphor? C10H16O

Formula for Silver Oxide? AgI

Formula for Arsenic Trioxide? As4
O3

Formula for Gold Trioxide? Au2O3

Formula for Gold Sulfide? Au2S

Formula for Bromine? Br2

Formula for Aluminium foil? Al2O3

What is the Chemical Formula for Acid Rain? SO2 (Sulphur dioxide) + NO2 (Nitrogen dioxide) + H2O (Water) = Acid rain

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