The rate of evaporation is affected by all of the following except
a. the temperature.
b. the humidity.
c. the type of solid evaporating.
d. the area of the surface.

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Which of these is a physical property

What is the molecular weight of copper