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• Subtitle: Types of Chemical Reactions Let's discuss five major types of chemical reactions. We will examine examples of each type and learn how to classify them, enabling you to identify the type of a chemical reaction. The first reaction is the synthesis reaction, also known as a combination reaction. Synthesis means making, and in this reaction, a compound is formed from simpler materials. For example, carbon combines with oxygen gas to produce carbon dioxide (CO2). The resulting compound is more complex than the two initial elements. Another example is sodium reacting with chlorine gas (Cl2) to create sodium chloride (NaCl), which is also more complex than the starting materials. A note on the equations used in this lesson: some equations may be unbalanced, meaning the number of atoms on both sides may not match. While balancing equations is typically important, it can be distracting when learning about different reaction types. Therefore, focus on the elements and their rearrangements in these reactions. A synthesis reaction generally looks like this: A + B → C, where A and B are different elements or compounds that combine to form something more complex. Next, we have ...