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2: Experiment 2 - Nomenclature

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    Ancillary Documents

    Learning Objectives


    • Molecular formula
    • Ionic compounds
    • Covalent compounds
    • Acids


    • Fill out the worksheet according to the rules for naming compounds.

    Prior knowledge:

    Chemical Nomenclature is a set of rules that was developed to ensure generation of systematic names for chemical compounds. In other words, we need to follow nomenclature rules to make sure that we use the same name for the same compounds so other people can understand us. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC). 

    Deeper Look

    Ionic compounds consist of cation (positively charged) and anions (negatively charged) that are held together by electrostatic attraction. Most of the time in an ionic compound you will find a metal bonded to non-metal. These compounds can be made out of monoatomic or polyatomic ions. 

    Covalent compounds are two or more non-metals that are held together by covalent bonds. Acids are also covalent compounds.

    Molecular formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs. When multiple atoms are held together by covalent bonds they form a single chemical entity, which we call a molecule. As postulated in Dalton's atomic theory, the ratio of the atoms of the different elements are whole numbers, and this can be described by the molecule's molecular formula.


    June 1, 2020

    This is a one period lab and you will be asked to work in Zoom Breakout Rooms to complete your Group assignment. Your assignment will consist of 7 parts. Tasks will include naming mono- and polyatomic ions, writing chemical formulas from ions, writing chemical formulas from compounds' names, naming compounds and writing ions they consist of, naming acids and writing formulas of acids.

    Interactive Element


    Practice exercises 

    You can use this worksheet to practice before the lab. The key is posted here. Use the quiz below to practice activities below to help you with this topic.


    Contributors and Attributions

    Robert E. Belford (University of Arkansas Little Rock; Department of Chemistry). The breadth, depth and veracity of this work is the responsibility of Robert E. Belford, You should contact him if you have any concerns. This material has both original contributions, and content built upon prior contributions of the LibreTexts Community and other resources, including but not limited to:

    • Elena Lisitsyna

    2: Experiment 2 - Nomenclature is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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