3. At 25°C a block of unknown metal weighing 6.50x103 grams has the following dimensions: length 16.1 cm, width 10.7 cm, and height 2.0 cm. Is the metal likely to be
gold? Why/why not?

the product of the pressure and volume is also constant

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.

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year