11. identify the type of reaction shown by this chemical equation: c₃h₈ + 5o₂ → 3co₂ + 4h₂o\nsynthesis\ndoubl…

Brief Explanations:

Combustion reactions involve a substance reacting with oxygen to produce heat and usually carbon - dioxide and water. Here, propane ($C_3H_8$) reacts with oxygen ($O_2$) to form carbon - dioxide ($CO_2$) and water ($H_2O$), which is characteristic of a combustion reaction. Synthesis is when two or more substances combine to form one product. Double replacement involves the exchange of ions between two compounds. Decomposition is when one compound breaks down into two or more simpler substances.

Answer:

C. Combustion