Liquids 1 We can add small amount of liquid to our divided powders. So we can add __ to INCREASE the ABSORBABILITY of powders. 2 When a LIQUID SERVES AS A SOLVENT for the preparation for a non-volatile heat stable compound, it may be evaporated gently on a water bath. We can add __ to INCREASE the RATE OF SOLVENT by increasing the surface area. 3 Aside from liquids, we can also add __. We can add them to powders but make sure that the amount are EQUIVALENT to the amount of POWDERS