What does the coefficient (number in front of a molecule/element) in a balanced equation tell you about the quantity of that chemical? A. the volume of the chemical
B. the mass of the chemical
C. the number of moles of the chemical
D. the atomic number of the molecule or element

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?