Barbara completed an assignment for extra credit in science class. she used a ph meter to find the ph of different substances. after she finished measuring the phs, she created a diagram that showed the substances arranged in order from the most acidic to the most basic if barbara added lemon juice ph 2.2 to her investigation, where should it appear in her diagram

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: