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  • Understanding Chemical Formulas: Atom Count in Molecules
    The chemical formula of a compound specifies the actual number of atoms of each element in one molecule of that compound.

    Here's how it works:

    * Subscripts: The chemical formula uses subscripts to indicate the number of atoms of each element in the molecule.

    * For example, the formula for water is H₂O. The subscript "2" after the "H" means there are two hydrogen atoms in each water molecule, while the "O" without a subscript implies there's one oxygen atom.

    * Coefficients: Coefficients are numbers placed in front of a chemical formula. They indicate the number of molecules of that compound.

    * For example, 2H₂O means there are two molecules of water.

    Here are some examples:

    * CO₂ (Carbon dioxide): One carbon atom and two oxygen atoms.

    * NaCl (Sodium chloride): One sodium atom and one chlorine atom.

    * C₆H₁₂O₆ (Glucose): Six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.

    Let me know if you'd like more examples or have other chemistry questions!

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