A 1.20g +/- 0.01g sample of hydrated MgCO3 is heated to drive of the water. The dry sample has a mass of 0.58g +/- 0.01g.

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?