The solubility product of Lead (II) sulphate , PbSO4 is very low and it is almost insoluble in water.
No reaction occurs
Sodium sulfate can exist in an aqueous solution but it can also exist on its own as a crystalline solid.
Yes.
yes
It's usually found in an aqueous solution as it is an ion with a charge of (-2), although if it is combined with Strontium, Barium, Calcium, Silver, or Lead the compound becomes insoluble and stays a solid.
No reaction occurs
The chemical formula for iron sulfate is FeSO4. When it is dissolved in water, it forms aqueous iron sulfate, which is represented as FeSO4(aq).
The white solid precipitated when an aqueous solution of barium chloride is mixed with an aqueous solution of sodium sulfate is named "barium sulfate" and has the formula BsSO4.
Iron sulfate dissolves in water to make an aqueous solution of iron sulfate.
Sodium sulfate can exist in an aqueous solution but it can also exist on its own as a crystalline solid.
Yes.
The aqueous solution of ferrous sulfate, FeSO4, is light green on heating. It changes to yellow then brown due to formation of ferric sulfate.
Add some barium chloride solution to the neutral or weakly acid sulfate solution
It depends on the copper charge.Cu2SO4(aq) or CuSO4(aq)
If you add an aqueous solution of sodium sulfate (Na2SO4) to an aqueous solution of hydrochloric acid (HCl), there is NO REACTION. So, yes, it is a physical change because you made solutions of the two reagents, but for no other reason.
Sugar is dissolved by the water, so therefore water is the solvent.
Sounds like copper (II) sulfate (ie cupric sulfate or CuSO4)