select the correct answer.\na student has a solution of sodium nitrate and believes it is saturated. which…

select the correct answer.\na student has a solution of sodium nitrate and believes it is saturated. which statement provides the best evidence that the solution is saturated?\na. when more water is added, the appearance of the solution doesnt change.\nb. when some of the water evaporates, all of the sodium nitrate remains dissolved.\nc. when a small amount of sodium nitrate is added, a large amount precipitates from the solution.\nd. when additional sodium nitrate is added, it all settles to the bottom of the container.\ne. when the temperature of the solution is increased, additional sodium nitrate can be dissolved.
Answer
Answer:
D. When additional sodium nitrate is added, it all settles to the bottom of the container.
Explanation:
Step1: Define saturated solution
A saturated solution is one where the maximum amount of solute (sodium nitrate here) is dissolved in the solvent (water) at a given temperature and pressure.
Step2: Analyze option A
Adding more water just dilutes, doesn't show saturation.
Step3: Analyze option B
Water evaporation with all - sodium nitrate dissolved may not mean saturation.
Step4: Analyze option C
A small amount of added sodium nitrate causing a large - amount precipitation is not typical evidence.
Step5: Analyze option D
When additional sodium nitrate added settles at the bottom, it means no more can dissolve, indicating saturation.
Step6: Analyze option E
Increasing temperature to dissolve more shows temperature - dependent solubility, not current saturation.