The diagram shows the layers formed when 10 mL each of honey, maple syrup, and corn syrup were slowly poured into a glass cylinder.

A ping pong ball released gently into the cylinder floats on top of the corn syrup layer. What best
compares the densities of the substances?
All liquids are denser than the ball, and honey is denser than corn syrup and maple syrup.
O Corn syrup is denser than the other liquids and the ball.
O Honey is denser than corn syrup but less dense than the ball.
Corn syrup is denser than the other liquids, and the ball is denser than the liquids.

The reaction q+r2=r2q is found to be first order in r2 and

Particles vibrate in a rigid structure and do not move relative to their neighbors.

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.