How do you find the change value in grams? For example: Equation:
CH4 + 2O2 = CO2 + 2H2O

Initial: 3g , 4g , 0g and 0g.

Now how would you find the change in grams?

(ICF/ICE Table Problem)

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?