Yeast is added to a beer fermentation unit, where the yeast grows while fermenting the sugars into ethanol. Assuming yeast is your component and the fermentation unit is your system, which terms in the general balance can be maintained and which can be eliminated? Justify your answer briefly.
you can eliminate the sugar since it is been converted into ethanol.you can then keep the yeast for use again and your ethanol for consumption or industrial or domestic use
