What family of elements is unreactive and why?

Noble gasses because they have 8 electrons

answer: at room temperature (roughly 20 degrees c), you can dissolve 203.9 grams (or 200 grams) of sugar in 100 ml of water. as water temperature increases, the amount of sugar that will dissolve increases, up to about 500 grams of sugar in 100 ml water at 100 degrees c.

explanation:

clouds form

solid ice forms on leaves.

water droplets form on grass.