Chemical Formulae Challenge 🧪 Chemical Formulae Challenge ⭐ Score: 0 Level: 1(20s) 🔊 Restart — Level 1 Progress: 0 / 5 Press Start to begin. 🧪 Chemical Formulae Challenge One mistake and the run ends. Clear 5 correct to advance each level. Clear all levels and win a prize! Level 1: 20s • Level 2: 15s • Level 3: 10s • Level 4: 10s 🚀 Start How it works Aim: build automatic accuracy for ions, salts and brackets — exactly like exam marking. Game Over 🥷 Chemical Formula Ninja You cleared all 4 levels with zero mistakes. 📸 Screenshot this and show it to your tutor to claim your prize. theclassroom — Start over Close