How many grams of disulfur dichloride (S2C12) can be produced from 200.0g of
sulfur (58) reacting with 100.0g of
chlorine (C12)?

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.

it is stable as it is in group 0 which have full outer shells of electrons