Why can space be described as "cold and hot" at the same time ?

In one or two grammatically correct sentences, write a definition for the term molecule geometry

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.

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?