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","source_url":"https://www.ratemyprofessors.com/professor/2773752","quality_rating":5,"difficulty_rating":4},{"observed_at":"2026-09-07 16:04:50.592873+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTQyMzYyMzA3","source_instructor_id":"rmp:2773752","instructor_name":"Stephen Block","course_label":"CHEM109","course_id":"CHEM 109","course_uid":"course_f4c1d40f8af1545c1ccf8488","review_date":"2025-12-20 21:58:37 +0000 UTC","comment":"Chem 109 has a very difficult nature. The tests are incredibly difficult, much more than the practice tests given.  Dr. Block is extremely knowledgeable in his field . The thing is Dr. Block says there will be an \"adjustment\" to grades at the end, but will not post it anywhere. You cannot see how much (if any) your grade was \"adjusted\". ","source_url":"https://www.ratemyprofessors.com/professor/2773752","quality_rating":3,"difficulty_rating":5},{"observed_at":"2026-09-07 16:04:50.592873+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTQyMzEyMDgx","source_instructor_id":"rmp:2773752","instructor_name":"Stephen Block","course_label":"CHEM109","course_id":"CHEM 109","course_uid":"course_f4c1d40f8af1545c1ccf8488","review_date":"2025-12-17 18:43:07 +0000 UTC","comment":"I genuinely cannot say enough good things about Professor Block. He presented the material in such a way that it was so easy to grasp, and made you excited about chemistry. He cares about the success and wellbeing of all of his students, and is just a fun guy to be around. 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