Question

8
identify the reaction type: * (0.5 points)
what type of chemical reaction is this one?
c₂h₂ + o₂ --> co₂ + h₂o
single replacement
decomposition
combustion
double replacement
synthesis

Explanation:

The reaction is $\ce{C2H2 + O2 -> CO2 + H2O}$. Combustion reactions involve a fuel (here, the hydrocarbon $\ce{C2H2}$) reacting with oxygen ($\ce{O2}$) to produce carbon dioxide ($\ce{CO2}$) and water ($\ce{H2O}$). Single replacement involves one element replacing another, decomposition is a compound breaking into simpler substances, double replacement involves two compounds exchanging ions, and synthesis is combining substances. This matches combustion.

Answer:

C. Combustion