Two pieces of the same metal or placed on the table with the piece of metal have the same density mass and texture which characteristic must be the only difference between the two samples A-they contain a different amount of matter per unit volume

B-they have different dimensions

C-they are made up of a different type of matter

D-they have different boiling points

Blank allows you to do calculations for situations in which only the amount of gas is constant a)boyle's law b)combined gas law c)ideal gas law d)dalton's law

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

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.