I guess it is neither acid not base .. it is ionic compound (neutral)
NiCO3 + HCl =NiCl2 + H2O +CO2
the formula is NiCl2
Mn+NiCl2---->MnCl2(aq)+Ni(s)
NiCl2 x 6 H2O Nickel(II) Chloride Hexahydride
8.66 x 10^20 formula units NiCl2 x (1 mol NiCl2 / 6.022x10^23 # atoms NiCl2) x (3 mol Ni and Cl2 / 1 mol NiCl2) = 4.31 x 10^-3 moles of ions
NiCl2 is nickel chloride
NiCO3 + HCl =NiCl2 + H2O +CO2
the formula is NiCl2
Mn+NiCl2---->MnCl2(aq)+Ni(s)
NiCl2 x 6 H2O Nickel(II) Chloride Hexahydride
8.66 x 10^20 formula units NiCl2 x (1 mol NiCl2 / 6.022x10^23 # atoms NiCl2) x (3 mol Ni and Cl2 / 1 mol NiCl2) = 4.31 x 10^-3 moles of ions
Na3(PO4)3 + NiCl2 => ...
Formula: NiCl2
ionic
NiCl2
Ni + AlCl3
2