Stannous sulphate: SnSO4 Nickel sulphate: NiSO4.6H2O
Nickel cannot replace copper in copper II sulfate because nickel is higher in the electromotive series than copper.
The boiling point of nickel sulfate should be around 840 °C, where thermal decomposition has already begun.
Ni2S3
The formula for nickel II sulfate tetrahydrate is NiSO4 * 4H2O.
Nickel sulfate is an ionic compound though it has covalent bonds within the sulfate ion itself.
nickel (ll) sulfate heptahydrate
Stannous sulphate: SnSO4 Nickel sulphate: NiSO4.6H2O
The compound NiSO4 7H2O is magnesium sulfate heptahydrate. It is a type of inorganic salt that is commonly known as Epsom salt.
Nickel cannot replace copper in copper II sulfate because nickel is higher in the electromotive series than copper.
Green
nickel sulfate + sodium carbonate -> sodium sulfate + nickel carbonate
green colour
Nickel sulfate is an ionic compound.
NiS nickel sulfide
The boiling point of nickel sulfate should be around 840 °C, where thermal decomposition has already begun.
Okay, let's take the basics: There is no such thing as "copper sulfate baking powder", as it would be poisonous. I can think of no way to relate elemental nickel to the fictitious "copper sulfate baking powder".