Speedrunning Chemistry Simulations
100% = full run, completing all 3 levels, Easy = complete level 1 only, Medium = complete level 2 only, Hard = complete level 3 only
Time starts as soon as you select a level, and it ends once you finish the last level in your challenge (or the only level if you selected another category). You must get 5 stars on the level (no mistakes) in order for the timer to stop. The timer automatically submits your score to the leaderboard.
Click the above image to toggle music (music is currently off)
Leaderboards
Balancing
100% (Full Game)
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Benjamin Bowman |
00:56.667 |
2026-01-26 22:59:33 |
| 🥈 |
Adam Xu |
07:48.652 |
2026-01-23 07:58:20 |
Easy Only
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Benjamin Bowman |
00:06.856 |
2026-01-26 17:28:39 |
| 🥈 |
Adam Xu |
00:09.348 |
2026-01-24 22:34:38 |
| 🥉 |
Matvei Sokoloff |
00:37.423 |
2026-02-11 00:37:28 |
| 4 |
Samuel Tsyganskiy |
01:01.407 |
2026-01-26 19:24:22 |
| 5 |
Howard Kent |
03:24.084 |
2026-01-23 21:42:22 |
Medium Only
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Benjamin Bowman |
00:20.494 |
2026-01-26 19:48:36 |
| 🥈 |
Adam Xu |
00:46.885 |
2026-01-26 19:58:40 |
| 🥉 |
Samuel Tsyganskiy |
01:55.183 |
2026-01-26 19:28:06 |
Hard Only
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Benjamin Bowman |
00:24.938 |
2026-01-26 19:47:23 |
Products & Leftovers
100% (Full Game)
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Adam Xu |
12:06.678 |
2026-02-12 18:20:46 |
Easy Only
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Matvei Sokoloff |
00:15.640 |
2026-02-11 03:47:19 |
| 🥈 |
Adam Xu |
00:36.385 |
2026-02-12 18:24:52 |
Medium Only
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Adam Xu |
00:39.920 |
2026-02-12 20:40:45 |
Hard Only
| Rank |
Name |
Time |
Date/Time (Local) |
| 🥇 |
Adam Xu |
00:52.032 |
2026-02-12 20:39:27 |
FAQ
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How does the game work? Balance the chemical equations idk you figure it out lol. Also there's the other game where you figure out the leftovers and stuff idk you figure it out you're supposed to have learned this stuff in chemistry lmao. go read your notes if you still can't figure this out :(
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How does timing work? Time starts upon first level selection. Time stops upon reaching the 5 star screen for the last level. Must complete all three levels (5 stars). You may reset during the run (doesn't reset timer) but your time will only count if you finish all three levels.
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Is this even legal? Yep, the code is under creative commons license and the sim is open source. I just forked it and added this stuff. More info here.
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What score is shown? Only your best time goes on the leaderboard.
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I got a bad time, how to remove from leaderboard? Here's the great thing, you don't. Just stop skill issuing and get a better time smh
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How to get better? Idk that's a you problem lmao
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Why is the site ugly? It's very 90s esque and it's really simple/usable. They really don't make sites like these anymore (also the site is under 256kb)
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Can I remove my name from the leaderboard? If you contact me (you probably know me irl) I can remove it for you. If you don't know who I am use one of the contact methods on my GitHub profile: AdamEXu. Your time won't be removed, but your name shall be censored!
©2026 Adam Xu - Open source on GitHub AdamEXu/balancing-chemical-equations (would appreciate a star)
Fork of Balancing Chemical Equations and Reactants, Products, and Leftovers by PhET Interactive Simulations, University of Colorado Boulder, licensed under Creative Commons Attribution 4.0 International (CC BY 4.0).
