Which equation correctly shows the decomposition of calcium nitrate?
- A$\text{Ca(NO}_3)_2 \rightarrow \text{CaO} + \text{NO}_2 + \text{O}_2$
- B$\text{Ca(NO}_3)_2 \rightarrow \text{CaO} + 2\text{NO}_2 + \text{O}_2$
- C$2\text{Ca(NO}_3)_2 \rightarrow 2\text{CaO} + 2\text{NO}_2 + \text{O}_2$
- D$2\text{Ca(NO}_3)_2 \rightarrow 2\text{CaO} + 4\text{NO}_2 + \text{O}_2$