Rozwiąrz równania reakcji chemicznych
Cr(OH)3 -> Cr2O3 + H2O
Al(OH)3 -> Al2O3 + H2O
2Cr(OH)₃ ⇒ Cr₂O₃ + 3H₂O
2Al(OH)₃ ⇒ Al₂O₃ + 3H₂O
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2Cr(OH)₃ ⇒ Cr₂O₃ + 3H₂O
2Al(OH)₃ ⇒ Al₂O₃ + 3H₂O