Select all two-phase material systems from the list below.
Select all that apply.
O Solid Sodium Chloride (Salt, NaCl)
O Liquid Bronze (Cu + Sn Liquid Solution)
O Solid Aluminum
O Solid Lead-Tin Solder (a mixture of Pb-rich and Sn-rich Solid Solutions)
O Solid Gray Cast Iron (Ferrite Solid Solution + Embedded Graphite Flakes)
O Solid Ductile Cast Iron (Ferrite Solid Solution + Embedded Graphite Spheres)

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

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:

What is the best describtion of the side of the moon that faces earth?