Avoid this class at any cost. Even my chem110A is better than this class.

Bouchard's lectures involve mostly derivations. He won't actually show you how to use the equations that he derives, nor will he explain any big conceptual ideas in chemistry/how to approach problems. You'll have to teach yourself most of the material. The only reason I did well in this class was because I had a helpful TA. Avoid this class if you can, or if you must take it, good luck.

Did I get an A in this class? Yes. Did I actually learn anything? No. Don't get me wrong, the professor was incredibly intelligent and did explain what we learned, the problem was was that it was formatted kind of weird.
His lectures were essentially office hours, with the slides for the textbook presented in a video at some point during the week. The problem was was that the recorded lecture videos would come out after he went over problems in class. So, it took me a long time to eventually figure out how to study.
Homework was done on owl and you could retake the questions infinitely until you got 100% on each question, which boosts your grade.
Then I discovered that the exams are 100% easier than what we went over in class. Exams are also online and through owl, so many similar problems from homework or other study assignments would show up. I got a great grade in this class only due to my prior understanding of math as a math major. If I was a chemistry major I would not be prepared for future classes.
So, if you're looking for an easy chem20A class (or need it as a pre-req for a major that doesn't have a strong chem emphasis), take it with Bouchard, however if your major requires further chem classes, I would recommend a different professor. (The TAs are wonderful btw. They were very clear and very nice!)
No harm to the professor, however you can tell he's used to teaching higher division courses, so as a lower div course, it is very unique for a chem20A class, and it might be very different if this prof taught in person.
(Also the online formatting helped so much as memorizing formulas, equations, or random numbers wasn't a priority)

I was afraid to take this class with Professor Bouchard due to negative past reviews. However, I did not pickup on any rudeness at all. He seems to be a pretty nice person from what I could see. Online, this class was very manageable.
All of the homework and tests are given on a website called OWL. Professor Bouchard set homework to the hardest level (level 4). Midterms and the final were set from levels 1-3, so they were much easier than the homework. You can do very well on tests if you do the homework, learn the formatting of the questions, and learn how to use OWL. There are a few programs in OWL that can be confusing to use at first so make sure to know how to use them before the tests.
Bouchard does not lecture. Instead he treats class like "office hours," which I personally disliked. I often skipped class and never felt like I was missing out on anything important. He made prerecorded lectures but I found that they were too repetitive with the textbook so I did not watch them. You do get points for attending discussion however.
The way I learned in this class was very simple. I read all of the assigned textbook chapters and took notes. Then I filled in any gaps in my knowledge by watching videos on Youtube and taking more notes. The content is not difficult in my opinion. The most difficult topic for me was the quantum mechanics section but it was manageable and there honestly was not much use for the complex formulas on the tests. If you want to test your knowledge in the class do the end of chapter problems in the textbook. They are more complex and difficult. I don't think this is necessary, but a good option if you have some extra time.

I was scared to take this class because the prof was rated like a 2.3, but I decided to give it a shot and drop it if it didn't work out. Some of his reviews say that he is really rude and condescending, but I didn't get that at all. In fact, he's really nice and will answer questions you have. I will say though, I learned very very little from this class. The exams were like 11 questions on this thing called owl, and they were of owl difficulty 1-3 while the HW questions were of difficulty 4. I basically got an A in the class by creating formula sheets for myself based on the homework questions, but I really didn't learn anything at all. Lecture was just his office hour and I eventually stopped attending them.
My major required only chem 20a and 20b, so I took this class to get an A and be done with it, but since taking it I've actually switched to a major that requires chem all the way up to 14D (switching tracks), so I'm kind of screwed.
Take this class with him online like I did for if you need to get an A and be done with, but don't expect to learn anything unless you decide to read the textbook and watch Youtube videos on your own for your own learning's sake.

I took this class in freshmen year, and I am now a senior. I just remembered how much I hated this guy, and in all my four years, he is still the worst professor I've ever had in my life. Awful.

I think finally the time has come to write the review for this class. CHEM 114H is very different from CHEM 114 such that you are required to complete an independent, term-long project instead of writing regular lab reports. This process can be extremely complicated and life-draining if you do not know what you're doing. I got an incomplete, an extension to the incomplete, a lapsed F, and another extension to the incomplete before I finally got my letter grade, completed in Winter 2022. I would describe the whole story was a "wild journey", to say the least. Anyway, the professor can be a little flakey and blunt, but at the end of the day, he is truly patient, caring, and forgiving inside the mind. I cannot really recommend anyone to take this class especially if you are unprepared, but at the end of the day, Professor Bouchard was truly my life saver.

He was an okay guy. Sometimes he would laugh in lecture and seem like an actual human being. The homework was hard but it gave you a better understanding of the material plus its only 5% of your grade. Midterm is just the notes. Take your time reviewing everything.

The worst professor at UCLA. Avoid him all you can.

So many terrible reviews, Bouchard isn't all bad.

First of all, yes. This class will be time-consuming, most especially if you procrastinate. But if you have a good study structure you will do okay. (by a good study structure I mean, skimming material before lecture, reviewing after lecture, and attempting all homework without simply copying). If you do this you will most likely be fine. The midterms/final were very straightforward, easy if you noted the important concepts Bouchard went over during each lecture and made sure you understood it. The concepts might be hard to grasp at first but the underlying derivations and "extra" math can be very useful for clearer, confident understanding.

His homework is very tedious but it's made in a way to make you think. Not just think vaguely, but truly think as would a scientist/researcher. You want to be able to use the fundamentals (you should have studied) as tools that can help you work your way towards a solution. Homework wasn't really graded on accuracy, but rather how much thought you put into it and if your thinking semi-makes sense. This might mean, for one question it is easy to do, you get the right answer, get full credit. Another problem is more complicated, you bring in various facts/thms/etc and try to come up with a sound solution, get full credit. And if you need help, you can go to his office hours which can be very useful. Although, if you merely seek to get the answer handed to you, you're better off not going to office hours. He wants you to think and via guided questions, make you understand where you went wrong in your thought process or what you could study to understand it better yourself. He is a pretty cool guy too, outside the chemistry talk. You don't have to be scared of him. Sure he is a professor with a Ph.D. doing some cool research probably, but he's a person just like anyone else. Some might say he seems egotistical and condescending in his lectures, but I mean, cmon, he has phd level knowledge, these are the fundamental basics. If anything, the confident way he passes on information is something lacking in most professors here. And if you really have a problem with his homework or teaching style, let him know. He can most definitely take it. But you can't just bag on him for trying to be a professor that teaches you what it means to actually work for a grade.

Plus he gives his own notes for each chapter we go over in the textbook and his notes are VERY CLEAR. I still have them too.... one day I will study it in depth and understand it all.... they are very good, you don't have to rely on the textbook. For more emphasis, DO STUDY HIS NOTES. The couple of people who I know got an A (1)and high B(2ppl) range were constantly studying his notes, making sure they understood them, even completely copying them down- word for word- to ensure they were getting that information down somehow. The real trick- as is for any class- is exposure exposure exposure. You want to become familiar with the material and get those neurons to fire and wire together for those crucial thought processes you must rapidly bring about come time for midterms/final.

Overall, Bouchard's rigour is what I would expect from a phd professor teaching at the #1 public university. He could be more considerate of time, but it is a weeder class , so there's that to take into account.....

Work + Heat = Internal Energy. Don't lose that energy to complaining, overthinking, stressing, and procrastinating..... channel that energy and put in work! Whoever got this far, I wish you the best in all your studies ! Remember the why! The more reason you have to continue to pursue your path, the easier it will be to overcome the obstacles that face you. (i.e. "the why" is your greatest support.)

Much love. Namaste. Have a great day :)

TLDR?

You will learn one of two things : That working hard can get you anything you want, or that you need to reflect and ask, What do I really want?