In an experiment undertaken much like yours, a student reacted 0.0492g of magnesium in a eudiometer filled with water and hci. the water temperature was 25.0 'c. the barometer in the lab read 30.25 in hg and 56.20ml of gas was collected a what was the student's calculated value of r? b. what is the percent error? c. what is one possible source of this error?

these nuts

i think so it’s will be b yes i believe its

narendra modi is currently the pm of india

explanation:

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.