Aresearcher is studying the science of attractiveness and asks volunteer test subjects to describe what trait they find most attractive when show images of different people. what type of variable is the dependent variable in this experiment? a. ordered b. concrete c. categoric d. continuous

Does the energy in a solid increase or decrease when changing to a liquid?

Why are pipes bursting in the in extremely cold weather?

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: