It is a solution. A solution is a type of mixture in which a solute is dissolved in a solvent. A solution is a homogeneous mixture. In the case of an aqueous solution of sodium nitrate, the sodium nitrate is the solute and the water is the solvent.
homogeneous mixture
jj
Aqueous lead nitrate plus aqueous sodium iodide produce solid lead iodide and aqueous sodium nitrate.
Pb(NO3)2(aq)+2NaI(aq)=2NaNO3(aq)+PbI2(s)
Yes.
homogeneous mixture
jj
Yes, it is correct.
Just potassium nitrate in water. Aqueous stands for anything with water, so if you take dry potassium nitrate and add some water to it until it dissolves, you have made an aqueous solution of potassium nitrate.
Aqueous lead nitrate plus aqueous sodium iodide produce solid lead iodide and aqueous sodium nitrate.
Adding a solution of Sodium Sulphate to aqueous Barium Nitrate will produce a white precipitate of Barium Sulphate with Sodium Nitrate remaining in solution.
A silver nitrate solution is a homogeneous mixture.
Yes
To keep the kead nitrate in solution: otherwise it might precipitate lead.
silver nitrate is a compound. it is not a mixture.
Pb(NO3)2(aq)+2NaI(aq)=2NaNO3(aq)+PbI2(s)
Silver chloride, which is very insoluble, would precipitate out of the solution