Astudent intended to make a salt solution with a concentration of 10.0 grams of solute per liter of solution. when the student's solution was analyzed, it was found to contain 8.90 grams of solute per liter of solution. what was the percent error in the concentration of the solution?

Select the correct answer. which phrase correctly describes temperature? o a. average rotational kinetic energy of the particles in an object o b. average energy of the particles in an object c. average translational kinetic energy of the particles in an object od. all energy possessed by the particles in an object

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?