Acetylene gas (C2H2) reacts with oxygen to produce carbon dioxide and water. When 30.0 g of acetylene is reacted with O2, 18.5 g of water is formed.

2 C2H2 (g) + 3 O2 (g) → 2 CO2 (g) + 2 H2O (l)

What type of reaction is this?
What is the percent yield of this reaction?

 D. carbon dioxide and water.

Explanation:

Combustion is a type of chemical reaction in which fuel is reacted with oxygen to form carbon dioxide and water.

The balanced chemical equation for combustion of methane is:

Reactants of a chemical reaction is defined as the substances which take part in a chemical reaction and undergoes a chemical change. Reactants are written on left side of the arrow.

Thus methane and oxygen are reactants of combustion reaction.

Products are defined as the substance which are formed at the end of the chemical reaction.Products are written on the right side of the arrow.

Thus carbon dioxide and water are products of combustion reaction.