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Classify each of the following chemical reactions:

[tex]\[
\begin{array}{l}
1. \quad S + O_2 \rightarrow SO_2 \\
2. \quad CaCl_2 + 2 AgNO_3 \rightarrow Ca(NO_3)_2 + 2 AgCl \\
3. \quad Zn + CuSO_4 \rightarrow Cu + ZnSO_4 \\
4. \quad 2 Na_2O \rightarrow 4 Na + O_2
\end{array}
\][/tex]

[tex]\[
\begin{array}{l}
1. \quad \text{Combination reaction} \\
2. \quad \text{Double displacement reaction} \\
3. \quad \text{Single displacement reaction} \\
4. \quad \text{Decomposition reaction}
\end{array}
\][/tex]



Answer :

GinnyAnswer
Certainly! Let's classify each of the given chemical reactions step-by-step:

1. Reaction: [tex]\( S + O_2 \rightarrow SO_2 \)[/tex]
- Classification: Combination reaction
- Explanation: This reaction involves two reactants, sulfur (S) and oxygen (O[tex]\(_2\)[/tex]), combining to form a single product, sulfur dioxide (SO[tex]\(_2\)[/tex]). In combination reactions, two or more substances react to form a single product.

2. Reaction: [tex]\( CaCl_2 + 2 AgNO_3 \rightarrow Ca(NO_3)_2 + 2 AgCl \)[/tex]
- Classification: Double displacement reaction
- Explanation: In this reaction, calcium chloride (CaCl[tex]\(_2\)[/tex]) and silver nitrate (AgNO[tex]\(_3\)[/tex]) exchange ions to form calcium nitrate (Ca(NO[tex]\(_3\)[/tex])[tex]\(_2\)[/tex]) and silver chloride (AgCl). Double displacement reactions involve the exchange of ions between two compounds to form two new compounds.

3. Reaction: [tex]\( Zn + CuSO_4 \rightarrow Cu + ZnSO_4 \)[/tex]
- Classification: Single displacement reaction
- Explanation: Here, zinc (Zn) displaces copper (Cu) from copper sulfate (CuSO[tex]\(_4\)[/tex]), resulting in the formation of copper metal (Cu) and zinc sulfate (ZnSO[tex]\(_4\)[/tex]). In single displacement reactions, one element displaces another element in a compound.

4. Reaction: [tex]\( 2 Na_2O \rightarrow 4 Na + O_2 \)[/tex]
- Classification: Decomposition reaction
- Explanation: In this reaction, sodium oxide (Na[tex]\(_2\)[/tex]O) breaks down into sodium (Na) and oxygen (O[tex]\(_2\)[/tex]). Decomposition reactions involve a single compound breaking down into two or more simpler substances.

So, the classifications for the given reactions are:

1. [tex]\( S + O_2 \rightarrow SO_2 \)[/tex] - Combination reaction
2. [tex]\( CaCl_2 + 2 AgNO_3 \rightarrow Ca(NO_3)_2 + 2 AgCl \)[/tex] - Double displacement reaction
3. [tex]\( Zn + CuSO_4 \rightarrow Cu + ZnSO_4 \)[/tex] - Single displacement reaction
4. [tex]\( 2 Na_2O \rightarrow 4 Na + O_2 \)[/tex] - Decomposition reaction

Understanding these classifications helps in predicting reaction products and is fundamental in chemical reactions analysis.

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