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Unit 1 TESTS will be the first week in October. Review materials are available HERE already. Start studying!
Unit Overview
Chemical bonds allow elements to link together to form compounds. This means that our 118 elements can work together to create the billions of different compounds in our universe. This huge diversity of materials allows for almost everything interesting to happen, most notably life!
3D model of ammonia.
While there are many types of chemical bonds in our universe, we will focus on two of the largest and most common categories: ionic and covalent bonding. The reason these types of bonds form is almost the same for both categories, but the way those bonds form is totally different. This results in compounds with very different properties which we will explore in an early lab activity.
Later in the unit we will start to explore the properties of compounds like their shapes and polarity. These characteristics play a huge role in biology, allowing your body to selectively do chemical reactions that are needed to keep you alive and healthy. The shape of molecules such as proteins and enzymes determine the type of chemistry they can do, and many genetic disorders involve small changes to your DNA that allow your body to make these molecules in the incorrect shape. These small changes can have HUGE health effects, resulting in serious diseases such as sickle-cell anemia or diabetes.
Unit Contents
Section 1 - The Basics of Bonding
Section 2 - Chemical Nomenclature
Section 3 - Molar Mass and Percent Composition
Section 4 - Lewis Dot Structures
Section 5 - VSEPR Theory and Molecular Shape
Section 6 - Polarity
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