8.00 mole of iron and 7.00 mole of oxygen gas are used in the above reaction How many moles of excess oxygen are left over after the reaction goes to completion?

answer; ///electron cloud

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.

so what is the problem with your lab report and whats the subject of the lab report? i will you