What makes water h2o a polar molecule?
a. it’s density as liquid water is more than that of ice
b. it has N and S poles like a magnet
c. it’s hydrogen atoms have greater electron affinity than its oxygen atom
d. its structure is bent rather than linear

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.

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

listen, you cant how young you were.

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