What creates the skin-like surface formed due to the polar nature of water? ?

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1