A gas sample is held at constant pressure. The gas occupies 3. 62 l of volume when the temperature is 21. 6°c. Determine the temperature at which the volume of the gas is 3. 45 l.

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's. 

Answers basic questions for me