Astudent has a solution of sodium nitrate and believes it is saturated. which statement provides the best evidence that the solution is saturated? a. when more water is added, the appearance of the solution doesn’t change. b. when some of the water evaporates, all of the sodium nitrate remains dissolved. c. when a small amount of sodium nitrate is added, a large amount precipitates from the solution. d. when additional sodium nitrate is added, it all settles to the bottom of the container. e. when the temperature of the solution is increased, additional sodium nitrate can be dissolved.

Answer : The correct option is, D

Explanation :

Saturated solution : It is a chemical solution which contain the maximum amount of solute dissolved in the solvent. In saturated solution, the additional amount of solute will not dissolve in the solvent.

When a student has a solution of sodium nitrate then we can check their saturation point by adding additional amount of sodium nitrate. When we add more amount of sodium nitrate in the solution, then all of it will settle down to the bottom of the container.

Therefore, the best evidence for saturated solution is, When additional sodium nitrate is added, it all settles to the bottom of the container.

a. they are both space stations

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the answer to this question is 3.