Suppose you wanted to make 100 grams of water. What is the molar mass of water (H2O)? How many moles of water are in 100 grams? How many moles of hydrogen will you need? How many moles of oxygen will you need? How many grams of hydrogen and oxygen will you need? Hydrogen: Oxygen:

1. list three scientific reasons cockroaches may fly.

How do you lengthen a pattern piece? (family and consumer science, sewing)

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.