The freezing point of an aqueous solution of barium nitrate is -2.65°C determine the molal concentration of barium nitrate (0.475m)

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

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:

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world