Complete combustion of 4.80g of a hydrocarbon produced 15.4g of CO2 and 5.26g of H2O. What is the empirical formula for the hydrocarbon? Insert subscripts as necessary.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

the answer to this question is 3.