A 5.0 g sample of MgCl, may contain measurable amounts of other compounds as impurities. Which of the following quantities is
(are) needed to determine that the sample is pure MgCl2 ?

(A)The color and density of the sample
(B)The mass of Mg in the sample only
(C)The number of moles of Cl in the sample only
(D)The mass of Mg and the mass of Cl in the sample

Agas occupies 475 cm^3 at 313k. find its volume at 367k. you must show all of your work to receive credit. be sure to identify which of the gas laws you will be using

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d