Which of the following does paper burn in?(写出方程式)A.CO2 B.N2 C.O2 _英语解答

Which of the following does paper burn in?(写出方程式)
A.CO2 B.N2 C.O2 D.H2O

人气：103 ℃　时间：2020-05-08 02:21:05

解答

B O2
C + O2 = CO2
2C +O2 = 2CO