The part of the reactivity series displayed contains a newly discovered element, with symbol X. The only oxide formed by X has the formula $\text{XO}$. $\text{Ca}$ $\text{Mg}$ $\text{Fe}$ $\text{X}$ $\text{H}$ $\text{Cu}$ Which equation represents a reaction that takes place?
- A$\text{Cu(s)} + \text{X}^{2+}\text{(aq)} \rightarrow \text{Cu}^{2+}\text{(aq)} + \text{X(s)}$
- B$2\text{X(s)} + \text{Cu}^{2+}\text{(aq)} \rightarrow 2\text{X}^{+}\text{(aq)} + \text{Cu(s)}$
- C$\text{X(s)} + \text{Fe}_2\text{O}_3\text{(s)} \rightarrow 2\text{Fe(s)} + 3\text{XO(s)}$
- D$\text{X(s)} + 2\text{HCl(aq)} \rightarrow \text{XCl}_2\text{(aq)} + \text{H}_2\text{(g)}$