Molality (m) is . A. the number of moles of solute / the number of kilograms of solvent B. the number of kilograms of solvent / the number of moles of solute C. the number of moles of a substance / the number of liters of solution D. the number of liters of solution / the number of moles of a substance E. None of the Above

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?