You've decided to try to make your own wine by adding yeast to a sweet grape juice. after allowing plenty of time for the yeast to grow, you find that although the sugar levels in the juice are decreased, there's no alcohol in the mixture. what could have been the reason fermentation did not occur?

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?