How would you respond to a friend’s claim that chemists don’t know what to expect when synthesizing new materials?

You would most likely have to agree with the friend as scientists only know things by experimenting the unknown. So when synthesizing the new, the result will also be new and unheard of previously by the scientists.

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.

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