In some fireworks, powdered aluminium reacts with powdered barium nitrate. Heat is released, an unreactive gas is formed, and every nitrogen atom is reduced. What is the equation for this reaction?
- A$2\text{Al} + \text{Ba(NO}_3)_2 \rightarrow \text{Al}_2\text{O}_3 + \text{BaO} + 2\text{NO}$
- B$4\text{Al} + 4\text{Ba(NO}_3)_2 \rightarrow 2\text{Al}_2\text{O}_3 + 4\text{Ba(NO}_2)_2 + \text{O}_2$
- C$10\text{Al} + 3\text{Ba(NO}_3)_2 \rightarrow 5\text{Al}_2\text{O}_3 + 3\text{BaO} + 3\text{N}_2$
- D$10\text{Al} + 18\text{Ba(NO}_3)_2 \rightarrow 10\text{Al(NO}_3)_3 + 18\text{BaO} + 3\text{N}_2$