Heat that flows by conduction is the transfer of thermal energy between substances in contact. what mus
happen?
the two systems must be the same temperature
the two systems must not be touching each another.
one system must have higher kinetic energy than the other system.
the thermal energy of one system must be the same as the thermal energy of the other system

What forms when chemical reactions combine pollution with sunlight?

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 lessons does the history and study of the periodic table offer to other fields of science, and the pursuit science more generally