Part 1 - Argument: A student was adding baking soda and vinegar in a bottle. They then put a balloon on top of the
bottle immediately after adding them together. The student observed that the balloon inflated
and got larger. The student then predicted that the chemical reaction between the vinegar
and the baking soda had created brand new matter, and would have more mass at the
end of the reaction. Would you agree with the student's prediction or not? Explain your
answer,

Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.