93. In the following cases, in what order have the methods been used to increase the reaction rate? ``Adding $\text{Fe}^{3+}\text{(aq)}$ to hydrogen peroxide solution for its decomposition, preserving iron fibers in oxygen, burning iron powder on a flame''
Using a catalyst, increasing surface area of contact, increasing temperature
Increasing concentration of reactants, increasing temperature, increasing surface area of contact
Increasing concentration of reactants, increasing surface area of contact, increasing temperature
Using a catalyst, increasing concentration of reactants, increasing surface area of contact
\textbf{93.} In the following cases, in what order have the methods been used to increase the reaction rate?
``Adding $\text{Fe}^{3+}\text{(aq)}$ to hydrogen peroxide solution for its decomposition, preserving iron fibers in oxygen, burning iron powder on a flame''
\begin{enumerate}
\item Using a catalyst, increasing surface area of contact, increasing temperature
\item Increasing concentration of reactants, increasing temperature, increasing surface area of contact
\item Increasing concentration of reactants, increasing surface area of contact, increasing temperature
\item Using a catalyst, increasing concentration of reactants, increasing surface area of contact
\end{enumerate}