Stay away, by all means, stay away. This man is NOT accommodating during COVID at all. That just tells a lot of how he acts in class. He's rude and notorious for always being like that, his lectures are unclear and he does not like questions. He is the stereotypical horrible professor you think you might get.
The other reviews mention he uses old test questions, which he does. But this quarter he purposefully made his tests way more difficult because he didn't like that most of his students were getting As. He also grades on a backwards curve, which limits how many people get an A.

Just don't take his class.

This class gave me PTSD (Post Traumatic Scerri Disorder). Professor Scerri is the worst professor I have EVER had. This class left me defeated, confused, and unprepared. This class is so hard, and there is so little support for students. This class is the only reason why my GPA dropped - I was a straight A student until now. We weren't given enough time for exams, and they had parts a-e for every question. Absolute hell. Not to mention that the answer keys weren't even correct and we could barely get clarification or corrections from both the prof and TAs. Grading of the midterm was inconsistent too, and many students reported that their final grades were curved DOWN. Like what even??? Scerri is also a very passive aggressive individual and there were some instances where he was rude and discouraging to students who had genuine questions. Unless you somehow got on his good side, he would treat you with very little respect. I had him for 14A as well (in person) and I wish I learned the first time around to stay far away from his class. Honestly, just get a good tutor or PLF because you'll learn jack from him. I relied on YouTube chemistry tutorials and explanations to get by. If you take this class, Lord have mercy on your soul, because you're going to need it.

Scerri is the worst, most unaccommodating professor at UCLA. I didn't think much of him before entering the class and think even less of him now. His class is severely disorganized ( I mean the man had no sense of respect for the stuff he teaches). He is often very arrogant and downright condescending towards those who ask him questions in his classes.
I came into the class with quite a strong background in Chemistry but the way that he and his staff work, it makes it quite difficult to work with. His tests are not bad but the graders make mistakes and as a result one's score is jeopardized in the class.

He is not a good professor and I would stay away from his class -- he might be easy but his class is more disappointing than any other -- in terms of academics and otherwise.

Scerri is extremely rude, condescending, and unaccommodating. He should not be a professor for an introductory chem class hundreds of students are required to take for their major.
You'll learn more by not attending his lectures and watching YouTube videos instead (though you will have to attend discussions/skim lecture slides to find out what the topics even are since the syllabus does not explicitly state what we need to know). Scerri can't be bothered to record his own lectures and relies on a TA to do so for him. He will often start a minute or two before lecture is officially supposed to start and go over time after lecture should have ended. He refuses to check the chat during lectures, leaving multiple questions unanswered. Scerri is only passionate about his everyday rants to turn cameras on and when he gets a chance to promote the book he wrote. Even though this is an introductory class, he completely skipped over basic chemistry, forcing us to rely on outside sources to learn how to balance reactions. His lectures are extremely disorganized and consist of words and images on a PDF that have no context or explanations. Scerri reads off these slides, sometimes adding vague information, but his meager explanations do not help clear up new and confusing concepts. He tells us to visualize something new without giving examples or showing pictures and seems to think that just showing us the work for a problem will mean that we understand how to solve it. If you have taken AP Chem, you'll be able to rely on past knowledge for the first few weeks, but after the midterm, concepts that aren't taught in AP Chem begin to be introduced.
Grading scale: 30% Sapling (about 8 or 9 quizzes all due at the end of the quarter but they can get time-consuming since most questions have multiple parts and some questions go more in depth than we are expected to know), 30% midterm, 40% final. This doesn't sound bad until you realize Scerri downcurves. His exams are vague and sometimes even the TAs get confused by what the questions are trying to ask. He expects us to fit an entire explanation on one or two given lines and if we go over the line limit, the graders are instructed to not read it. He expects us to magically know how many reasons we should give for questions and takes points off when we don't have enough, but again, even the TAs don't know what to say to reach the expected number of reasons. Scerri does recycle questions though, so try to do as many old exams as possible, but beware that some answer keys he posts are incorrect and/or incomplete.
If you have to take this class, try to get Spencer as your TA. Even if you don't have him (I had a different TA), Spencer posts his discussion recordings so that anyone can watch them and his discussion slides with practice questions and answers. You can attend his office hours even if you aren't in his discussions and before the midterm and final, Spencer hosted review sessions and answered all the questions we had and clarified concepts.
TLDR: Don't take this class with Scerri. Save yourself.
Scerri is a decent guitar player and he should pursue a career teaching the guitar instead since he was much more passionate when playing the guitar than he ever was during any one of the lectures.

I definitely did not learn anything in this class, which will most likely hurt me going forward. Because this class was online, the class, as a whole, did extremely well and it was almost too easy, so I would take the grade distribution for the Spring 2020 quarter with a grain of salt, because they do not match the absorption of content.

Scerri is very smart but his lectures are super boring and fairly disorganized, despite having slides. Especially on Zoom it became increasingly difficult to pay attention. I would not take another class with Scerri, not because he's a bad or unfair professor (his tests are extremely fair and easy to do well on), but because I don't feel like I learn enough in his classes (I had him for both 14A and 14B and have almost no knowledge about chemistry).

This class is so hard for no reason!! The grade for this class is made up of Thinkwell quizzes, the midterm, and the final. Thinkwell doesn't take up too much time, but we were not given enough time for the midterm or the final. For the midterm, we got 2 hours and 30 minutes to submit, which sounds like a lot, but it really isn't when you have almost 30 questions. By the end, I was scrambling to finish. The final wasn't any better. We were given 3 hours and then another 30 minutes to submit. Eric is horrible at communicating, and at the end, we breezed through electrolysis and we had so many problems about it on our final. The grading of our midterm was inconsistent, and it was very difficult trying to communicate to either the TAs or Eric. The answer keys Eric gave to us to study with were wrong!! Honestly, going over homework problems helps a lot but not even that was able to save me from the inconsistencies of the tests. Overall, I would recommend this class with Eric because he allows open notes during his tests and Thinkwell makes up a decent enough portion of your grade.

I would like to think that Dr. Scerri has turned a new leaf. His exams used to be upwards of six questions with multiple parts, complicated equations, unclear directions, and every other atrocity you could think of. In light of his bad reviews, this quarter he opted to make the exams more organized, succinct, and tolerable.

Our midterm was rather pleasant, actually. Our tests were curved up and I was one of a few students who got 100% (sorry but I hope that gives context as to who's talking here).
The midterm was based on practice exam questions we had gotten during discussion sections, and his previous exams were a great litmus test for what types of questions we would expect.

The final exam, however, was an entirely different story. Because of the TA strike, our exam with multiple-choice on a Scantron. The multiple-choice questions were adulterated from the same online source and Prof Scerri lacked the common sense to supply us with the necessary information to approach these online questions. Because of this fault, 5 of 45 questions on our final exam are being omitted, with a 6th question having answer options from an entirely different question (formatting issue?). Compounding this, students with the CAE were told that they were five questions to omit and not approach, but students in traditional lecture halls are only told about four. For this reason, we are currently running the risk that students with accommodations will have an artificially lower score because they were told to leave another question blank.

Take this as a testament to his communication style: he sucks at it.

As other reviews have indicated, his lecture slides are incredibly unorganized and his style of walking us through lecture slides during class with occasional elaboration does little to aid our comprehension.

While I might not be as direct as the other reviews to "Avoid Scerri at all costs," I would advise that you might want to avoid him if unorganized slides, a lack of communication skills, a snobby personality, and a stark tendency to say "obviously" when trying to explain challenging concepts are a deal breaker to you.

Thank you for listening to my TedTalk.

Before taking this class, I was warned by many people that I should NOT take this class. After taking the class, I would give about the same advice to my peers. The professor does not use actual slides, but rather PDF documents with often unorganized information. When asked questions in class, he often took a long time to answer the questions, and sometimes just avoided the question entirely. It was clear many times that he did not really review his lecture slides before class. It seemed to me that he didn't really care for his student's wellbeing, as evidenced by the fact that he told students to never use his personal email and to only post things on the discussion forum (which he also rarely checked/answered). The exams were not too bad, especially given that they were open note, but I relied heavily on AP Chem knowledge to pass the class. If you can take the class with a different professor, please try to do so. If you cannot, make sure you attend TA sections (because the TAs are sometimes or usually better at explaining the information than Scerri) even though they are not mandatory, do a lot of practice problems, and watch a lot of Youtube videos on concepts you don't understand.

Dr. Scerri is clearly a very knowledgeable in the field of chemistry. That being said, he often times explains concepts as if we already have a strong understanding of this material, making it very difficult at times to follow along. The grading structure consisted of 50% of our grade being 4 quizzes which we had 3 attempts on, 20% our midterm, and 30% our final. The quizzes were fair, however, the midterm and final were both very difficult and rushed. He simply did not give us enough time resulting in poor results on the tests. Though the practice exams were similar to the questions he gave us on the test, they often had wrong answers on the key he provided, leading us wrong for what the correct work and answer should be for the actual exam.

Furthermore in light of COVID-19, he was not accommodating. Not only did he give unfair exams, but he also curved the class down significantly at the end of the quarter. He did not send out any reasoning for this curve nor did he offer the final numbers for the class. Instead, we received our final grades with no explanation which is both disheartening and frustrating. As a whole, the class was one frustrating experience after another and was not a pleasant experience.

SCERRI WAS SO HARD! Don't take this class. I hated it and struggled so much. I regret taking this class. He was very confusing and the tests were extremely hard! BE WARNED