Question

CuO + H2O= 2. Fe2O3 +H2O= 3. NaO+ H2O= 4. Al2O3= H2O=

Answer 1

1)CuO + H₂O≠

2)Fe₂O₃+H₂O≠

3)Na₂O+H₂O=2NaOH

4)Al₂O₃+H₂O≠

Реакции 1,2 и 4 не идут т.к. гидроксид меди,железа(ΙΙΙ) и алюминия не растворимы⇒оксиды меди,железа(ΙΙΙ) и алюминия с водой не реагируют

Answer 2

It looks like you've provided chemical equations, but some of them are incomplete or incorrect. I'll help you balance and complete these chemical equations:

1. CuO + H2O → Cu(OH)2

2. Fe2O3 + 3H2O → 2Fe(OH)3

3. Na2O + H2O → 2NaOH

4. Al2O3 + 3H2O → 2Al(OH)3

These are the balanced chemical equations for the reactions you mentioned. If you have any more questions or need further assistance, feel free to ask.