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Molecules and Formulas

Mr. Dunnum. Molecules and Formulas. What is a formula?. The formula tells you which elements make up a compound as well as how many atoms of each element are present.

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Molecules and Formulas

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  1. Mr. Dunnum Molecules and Formulas

  2. What is a formula? • The formula tells you which elements make up a compound as well as how many atoms of each element are present. • The subscript number written below and to the right of each element’s symbol tells you how many atoms of that element exist in one unit of that compound.

  3. What is a Molecule • The smallest complete unit of a compound • Often times they are showed like this • 1 H2O • 3 NaCl

  4. Chemical formulaIndicates the elements in a compound

  5. Elements for the day!

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