Hello, i need a$,$b$,$c$,$and d answered Consider the following reaction: $3$MnO$42-($aq$)+4$H$+($aq$)->2$ MnO$4-($aq$)+$ MnO$2($s$)+2$H$2$O $($l$)$

if tge rate of dissapearance of the manganate ion $($MnO$42-)$ is $3\mathrm{.}3$x$10-2$ m$/$s calculate: a

b

c

d

show full steps!!!