Visible and infrared lights

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.