What kind of waves is present during an earthquake? What kind of energy does an unlit match have?
Which of these is another way to write Newton's second law of motion?
What is it called when light changes direction after leaving a lens?
How do you calculate density?

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: