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Chapter 4: Problem 36

True or false: All combustion reactions are redox reactions. Explain your answer.

Short Answer

Expert verified
True. All combustion reactions are redox reactions because every combustion reaction involves a change in oxidation states, meaning they are also redox reactions.

Step by step solution

01

Understanding Combustion Reactions

A combustion reaction is a major class of chemical reactions, characterized by the reaction of a substance with oxygen. These reactions commonly involve hydrocarbons reacting with oxygen to form carbon dioxide and water, releasing heat and light as they do so.
02

Understanding Redox Reactions

Redox reactions are defined as those involving the transfer of electrons between chemical species. The species that loses electrons is oxidized and the one that gains electrons is reduced. The alteration in the oxidation states of atoms in a chemical reaction is the key to identifying a redox reaction.
03

Relation between Combustion and Redox Reactions

In a combustion reaction, the reacting substance (e.g., hydrocarbon) gets oxidized (loses electrons) by oxygen (which gets reduced, gains electrons). Hence, every combustion reaction involves a change in oxidation states and thus can be classified as a redox reaction. Therefore, the statement provided is indeed true.

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Most popular questions from this chapter

Acetylsalicylic acid ( \(\mathrm{C}_{9} \mathrm{H}_{8} \mathrm{O}_{4}\) ) is a monoprotic acid commonly known as "aspirin." A typical aspirin tablet, however, contains only a small amount of the acid. In an experiment to determine its composition, an aspirin tablet was crushed and dissolved in water. It took \(12.25 \mathrm{~mL}\) of \(0.1466 \mathrm{M} \mathrm{NaOH}\) to neutralize the solution. Calculate the number of grains of aspirin in the tablet. (One grain \(=0.0648\) g.)

You have \(505 \mathrm{~mL}\) of a \(0.125 \mathrm{M} \mathrm{HCl}\) solution and you want to dilute it to exactly \(0.100 \mathrm{M}\). How much water should you add? Assume volumes are additive.

Explain how you would prepare potassium iodide (KI) by means of (a) an acid- base reaction and (b) a reaction between an acid and a carbonate compound.

Of the following, which is most likely to be the strongest oxidizing agent: \(\mathrm{O}_{2}, \mathrm{O}_{2}^{+}, \mathrm{O}_{2}^{-}, \mathrm{O}_{2}^{2-} ?\)

You are given a colorless liquid. Describe three chemical tests you would perform on the liquid to show that it is water.
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