The correct formula is NH4Cl. This compound can be found both as a solid and in an aqueous solution.
Ag3PO4 is a solid compound. It is not soluble in water, so it exists as a solid in aqueous solutions.
PbSO4 is a solid that will not dissolve in water.
LiC2H3O2 is typically found in its solid form as lithium acetate. It can also be dissolved in water to form an aqueous solution.
They are the state symbols in a chemical reaction. s = solid l = (pure) liquid g = gas aq = aqueous ( water) solution.
its aqueous when dissolved in water and solid (@STP) when not
CuNO3 can be found as both a solid and as an aqueous solution.
Aqueous lead nitrate plus aqueous sodium iodide produce solid lead iodide and aqueous sodium nitrate.
Sodium sulfate can exist in both forms: as a solid (crystalline powder) and in aqueous solution when dissolved in water.
Calcium bromide is typically found in its solid form as a white crystalline substance. When dissolved in water, it forms an aqueous solution.
It is more likely to be called a precipitate.
You would need to add 18.75g of solid NaOH to the 750g of aqueous solution to obtain a 2.5% NaOH solution by mass.
Under normal conditions CuCl2 can exist in either a solid state or in aqueous solution.