Reactivity, patterns combustion reactions

SOME SIMPLE PATTERNS OF CHEMICAL REACTIVITY We then examine some simple chemical reactions combination reactions, decomposition reactions, and combustion reactions. 

We will present a large number of chemical reactions in this and later chapters. You will find it helpful to observe general trends in the patterns of reactivity. We have already encountered several general categories of reactions combustion reactions (Section 3.2), metathesis reactions (Section 4.2), Bronsted-Lowry acid-base (proton-transfer) reactions (Section 16.2), Lewis acid-base reactions (Section 16.11), and redox reactions (Section 20.1). Because O2 and H2O are abundant in our environment, it is particularly important to consider the possible reactions of these substances with other compounds. About one tiiird of the reactions discussed in tiiis chapter involve either O2 (oxidation or combustion reactions) or H2O (especially proton-transfer reactions). 

As you continue to study chemistry, you will encounter a wide variety of chemical reactions. The sheer number of different reactions can seem daunting at times, but most of them fall into a relatively small number of categories. Becoming familiar with several reaction types and learning to recognize patterns of reactivity will help you make sense out of the reactions in this book. Three of the most commonly encountered reaction types are combination, decomposition, and combustion. 

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