Is the rock cycle an example of a physical or chemical change?

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Which of the following is true about the speed of light? it depends on the wavelength.

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.