There are four basic types of chemical reactions, as shown in the table below. $$ \begin{array}{|c|c|} \hline \text { Reaction Type } & \text { General Example } \\ \hline \text { Combination } & \mathrm{A}+\mathrm{B} \rightarrow \mathrm{C} \\\ \hline \text { Decomposition } & \mathrm{C} \rightarrow \mathrm{A}+\mathrm{B} \\\ \hline \text { Single displacement } & \mathrm{A}+\mathrm{BC} \rightarrow \mathrm{B}+\mathrm{AC} \\ \hline \text { Double displacement } & \mathrm{AB}+\mathrm{CD} \rightarrow \mathrm{AC}+\mathrm{BD} \end{array} $$ The balanced chemical equation describing the reaction between hydrogen and fluorine is shown below. $$ \mathrm{H}_2+\mathrm{F}_2 \rightarrow 2 \mathrm{HF} $$ Which of the four basic types of chemical reactions is this? A. combination B. decomposition C. single displacement D. double displacement

Step by step solution

01

Identify the reactants and products

First, we need to identify the reactants and products in the given reaction. In this case, our reactants are hydrogen gas (\(\mathrm{H}_{2}\)) and fluorine gas (\(\mathrm{F}_{2}\)), and the product is hydrogen fluoride (\(2 \mathrm{HF}\)).

02

Compare the given reaction to the general examples

Now, we will compare the given reaction to the general examples of the four basic types of chemical reactions to determine which one it best fits. - Combination: A + B → C - Decomposition: C → A + B - Single displacement: A + BC → B + AC - Double displacement: AB + CD → AC + BD

03

Determine the reaction type

Comparing the given reaction (\(\mathrm{H}_{2}+\mathrm{F}_{2} \rightarrow 2 \mathrm{HF}\)) to the general examples, we can see that it matches the combination reaction type. In a combination reaction, two reactants come together to form a single product. In this case, hydrogen gas (\(\mathrm{H}_{2}\)) and fluorine gas (\(\mathrm{F}_{2}\)) combine to produce hydrogen fluoride (\(2 \mathrm{HF}\)), making this a combination reaction. The correct answer is A. combination.

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