Please put this video in this section

Hello. I think that this video should also be put before this video in its playlist. The latter video requires concepts that are only first presented by the former.

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Chemistry section and content order

I find that the chemistry course should have the video ordering revised. Or at least there should be a guide on what videos to watch in order if you are learning from scratch. I feel like it is org...

1. Közösség
2. Content Requests and Feedback