1. water is easily contaminated by both biological and chemical contaminants. define and give 3 examples of each
2. what happens when you mix an acid and a base
3. how does ppm compare to ppb
4. how are coagulation and filtration used to clean water
5. dante adds a small amount of sugar to a cup of warm water. after a period of time, the sugar is no longer visible. what happened to the sugar?

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: