Naoh+hcl--> nacl+h2o
what is the total number of grams of h2o produced when 116 grams of the product, nacl, is formed?

it’s. 36.0

hope this helps

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.