Color the Ions – Chemistry Coloring Game
Select a color from the palette and click a flower petal or a part of the bee. Match each ion with its characteristic color.
Ion Color Cheat Sheet
Chromium compounds• Cr₂O₇²⁻ (dichromate) → orange
• CrO₄²⁻ (chromate) → yellow
• Cr₂O₃ (chromium(III) oxide) → green
• CrSO₄ (chromium(II) sulfate) → blue‑green
Manganese compounds
• KMnO₄ (permanganate) → purple
• Mn²⁺ (manganese(II)) → pale pink
Iron compounds
• FeCl₃ (iron(III) chloride) → yellow‑brown
• Fe₂O₃ (iron(III) oxide) → red‑brown
Copper compounds
• CuSO₄ (copper(II) sulfate) → blue
• Cu(OH)₂ (copper(II) hydroxide) → blue‑green
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