Questions: List, describe, and provide an example of the three types of chemical reactions. ( 3 pts )

Solution Steps

Chemical reactions can be broadly categorized into several types based on the nature of the reactants and products. The three common types are:

1. Synthesis Reaction
2. Decomposition Reaction
3. Single Replacement Reaction

1. Synthesis Reaction:

   • Description: In a synthesis reaction, two or more simple substances combine to form a more complex product. These reactions are also known as combination reactions.
   • Example: The reaction between hydrogen and oxygen to form water is a classic example: \[ 2 \text{H}_2 + \text{O}_2 \rightarrow 2 \text{H}_2\text{O} \]

2. Decomposition Reaction:

   • Description: A decomposition reaction occurs when a single compound breaks down into two or more simpler substances. This type of reaction is essentially the opposite of a synthesis reaction.
   • Example: The decomposition of water into hydrogen and oxygen gases: \[ 2 \text{H}_2\text{O} \rightarrow 2 \text{H}_2 + \text{O}_2 \]

3. Single Replacement Reaction:

   • Description: In a single replacement reaction, one element replaces another element in a compound. This type of reaction typically involves metals and can be represented as \( A + BC \rightarrow AC + B \).
   • Example: The reaction of zinc with hydrochloric acid, where zinc replaces hydrogen: \[ \text{Zn} + 2 \text{HCl} \rightarrow \text{ZnCl}_2 + \text{H}_2 \]

Final Answer