In Stage 1 of his lab, Gunther adds 20 mg of solute into a solution. He stirs it and it completely dissolves. In Stage 2, he add
s 20 mg more of solute and stirs, but this time, some settles out. In Stage 3, he then heats his solution, adds 20 mg more,and the solute completely dissolves. Which best explains his experiment?
A)Stage 1 demonstrated a saturated solution, Stage 2 demonstrated an unsaturated solution, and Stage 3 demonstrated a supersaturated solution.
B)Stage 1 demonstrated an unsaturated solution, Stage 2 demonstrated a saturated solution, and Stage 3 demonstrated a supersaturated solution.
C)Stage 1 demonstrated a supersaturated solution, Stage 2 demonstrated a saturated solution, and Stage 3 demonstrated an unsaturated solution.
D)Stage 1 demonstrated an unsaturated solution, Stage 2 demonstrated a supersaturated solution, and Stage 3 demonstrated a saturated solution.
I think the answer is B) Stage 1 demonstrated an unsaturated solution, Stage 2 demonstrated a saturated solution, and Stage 3 demonstrated a supersaturated solution.
More heat in the atmosphere, less absorption of greenhouse gases on Earth, and solar and volcanic activity may contribute to an increase in global average surface temperatures.