Question

NiO > NiSO4 > Ni(OH)2 > NiCl2

Answer 1

Ответ:

1. 2Ni + O₂ = 2NiO

2. NiO + H₂SO₄ = NiSO₄ + H₂O

3.Ni + H2O = Ni(OH)2

4.Ni+Cl2=NiCl2