The correct formula is NH4Cl. This compound can be found both as a solid and in an aqueous solution.
it is a aqueous
PbSO4 is a solid that will not dissolve in water.
It is a dark grey solid.
In solid form not, but in aqueous solution it is.
Under normal conditions CuCl2 can exist in either a solid state or in aqueous solution.
Aqueous lead nitrate plus aqueous sodium iodide produce solid lead iodide and aqueous sodium nitrate.
BaCO3 is barium carbonate. It is a solid and is mostly insoluble in water.
CuNO3 can be found as both a solid and as an aqueous solution.
Sodium sulfate can exist in an aqueous solution but it can also exist on its own as a crystalline solid.
It is more likely to be called a precipitate.
Copper acetate is a solid compound which can be either dissolved to form an aqueous solution, or if sufficiently heated will become a gas.
Yes, an aqueous solution is a system having a uniform composition and appearance. If the solution is saturated, only the solution above the solid material will be uniform.