Grading 2019 AP Chemistry Exam FRQ #1

In this video, I cover how to access the official answer key for the free-response questions that is on the College Board website. I use it to grade my own response, then I use it to grade other sample student responses that are on the College Board website. I compare my scoring of the sample responses to the actual scores that those students received, and use this exercise to give better insight as to how the free-response section is scored.