HURRY PLEASE HELP!! The combustion of methane begins with 1 carbon atom and 4 hydrogen atoms in the compound CH4 How many hydrogen atoms will be found as a product?
A. 3
B. 4
C. 1
D. 2

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.