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This is the reaction equation between aluminum (Al) and alkali (KOH), producing potassium aluminate (KAlO2) and hydrogen (H2).
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If analyzed by atomic balance, we can see that the left side of the equation has 1 Al atom, 3 K atoms, 3 O atoms and 3 H atoms. The right side of the equation has the corresponding number of atoms.
- Reaction conditions
- This reaction usually occurs at room temperature or slightly higher to stimulate the reactant molecules.
- Reaction process
- Aluminum reacts with a strong alkali (KOH) to produce potassium aluminate and hydrogen.
- Phenomena occurring
- When pouring the KOH solution into aluminum, bubbles will form, indicating the production of hydrogen.
- The color of the solution will change.
- If the reaction is intense, heat may be generated enough to warm the solution.