Question

How did scientists have found that which component is coming out in a chemical reaction ?

Answer 1

By taking Known Reactants The identifying The Product formed After testing with different methods.

Eg : Propane Is reacted with Oxygen to Form Water Energy and carbon Dioxide.

For example, the combustion reaction of propane, found in gas grills and some fireplaces, is:

C₃H₈ + 5O₂ → 4H₂O + 3CO₂ + energy