Consider a voltaic cell that is set up as follows: Anode contains a Zn(s) electrode and 1M Zn2+(aq) Cathode contains a Pt(s) electrode and 1M MnO4–(aq), Mn2+(aq), and H+(aq) Which of the following statements match the cathode?
a. The electrode increases in mass
b. Oxidation occurs at this half-cell
c. Electrons enter the half-cell
d. The electrode is inactive
e. Cations from the salt-bridge move to this half-cell
f. The electrode is negative

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml

the answer is minerals.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.