To determine which compound is a reactant in the given chemical reaction, we need to identify the substances present on the left side of the reaction arrow. The arrow points from reactants (on the left) to products (on the right).
The given chemical reaction is:
[tex]\[ C_2H_2 + 5 O_2 \rightarrow 3 CO_2 + 4 H_2O \][/tex]
Here is the reaction interpreted step-by-step:
1. [tex]\[ C_2H_2 \][/tex] and [tex]\[ 5 O_2 \][/tex] on the left side of the arrow are the reactants.
2. [tex]\[ 3 CO_2 \][/tex] and [tex]\[ 4 H_2O \][/tex] on the right side of the arrow are the products.
Thus, based on this interpretation, the compounds that are reactants in this reaction are:
1. [tex]\[ C_2H_2 \][/tex] (acetylene)
2. [tex]\[ O_2 \][/tex] (oxygen)
So, among the given options:
- [tex]\[ C_2H_2 \][/tex]
- [tex]\[ O_2 \][/tex]
- [tex]\[ H_2O \][/tex]
- [tex]\[ CO_2 \][/tex]
The compounds [tex]\[ C_2H_2 \][/tex] and [tex]\[ O_2 \][/tex] are reactants in the reaction.
Therefore, the compounds that are reactants in the reaction are:
[tex]\[ C_2H_2 \][/tex]
[tex]\[ O_2 \][/tex]
