If a particular ore contains 58.8 % calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg of phosphorus?

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?