Write the reaction equation: Cr → CrCl3 → Cr (OH) 3 → Cr (NO3) 3 → K [Cr (OH) 4]

univerkov | April 11, 2021 | education

1) 2Cr + 6HCl → 2CrCl₃ + 3H₂↑;

2) CrCl₃ + 3H₂O → Cr(OH)₃↓ + 3HCl;

3) Cr(OH)₃ + 3HNO₃ → Cr(NО₃)₃ + 3H₂O;

4) Cr(NО₃)₃ + 4КОН → K[Cr(OH)₄] + 3KNO₃.

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