Nitrogen, oxygen and argon are obtained from liquid air by fractional distillation. State the physical property that makes this possible​

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.