The temperature of a solution can change the solubility of a substance. the chart shows solubility of the same solute at different temperatures in water. w: temp- 40 | 100g water- 50 x: temp- 59 | 100g water- 200 y: temp- 55 | 100g water- 150 z: temp- 48 | 100g water- 80 based on the chart, which solution was at the optimal temperature to allow the greatest solubility? w x y z (also, i know the answer is not y)

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !