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Objectives. I can compare the properties of ionic and covalent compounds with a V enn diagram. I can practice drawing Lewis Dot Diagrams of molecules by completing a worksheet.
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Objectives • I can compare the properties of ionic and covalent compounds with a Venn diagram. • I can practice drawing Lewis Dot Diagrams of molecules by completing a worksheet. • I can investigate the relationship between electronegativity and chemical bonding by sorting compounds by electronegativity data.
Ionic vs. Covalent Bonds • Bond Strength = the energy needed to break the bonds between atoms in a compound.
Ionic vs. Covalent Bonds Water (H2O) molecules Lithium Chloride (LiCl) crystal lattice
Ionic vs. Covalent • Think, Pair, Share: With a partner, fill in the middle overlapping portion of the Venn diagram. What do ionic and covalent compounds have in common? • Possible answers: • types of compounds, formed by chemical bonds, include more than one atom, involve electrons, are formed and broken by chemical reaction
Chemistry of Life • All organisms (living things) are made of macromolecules. • Macromolecules are large covalent compounds. • The atoms in proteins, carbohydrates, nucleic acids, and lipids are all connected by covalent bonds.