In this chemical equation, $w$, $x$, $y$, and $z$ each represent whole numbers. $w\text{ClO}_3^- + x\text{MnO}_4^- + y\text{H}^+ \rightarrow w\text{ClO}_4^- + x\text{MnO}_2 + z\text{H}_2\text{O}$. Once the equation has been balanced, what are $w$, $x$ and $y$?
Chemistry 9701 · AS & A Level · Electrochemistry