Đáp án:
S + O2 \(\overset{t^{o}}{\rightarrow}\) SO2
2Cu + O2\(\overset{t^{o}}{\rightarrow}\) 2CuO
4Na + O2 \(\overset{t^{o}}{\rightarrow}\) 2Na2O
2Ca + O2 \(\overset{t^{o}}{\rightarrow}\) 2CaO
4P + 5O2 \(\overset{t^{o}}{\rightarrow}\) 2P2O5
2Mg + O2 \(\overset{t^{o}}{\rightarrow}\) 2MgO