One mole of CO2 is equivalent to

44.01 grams

Explanation:

the the mass of 1 mole of CO2 is 44.0 1 grams. there are 6.022×1023 molecules of CO2 in a mole, enough to make the grams in the mole equal the mass.

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 think that the answer is c