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[单选题]
物质X是一种可再生绿色能源,其燃烧的化学方程式为X + 3O===2CO+ 3H2O ,则X的化学式为()
A.2H4
B.H3OH
C.2H5OH
D.2H6
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
C、2H5OH
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.2H4
B.H3OH
C.2H5OH
D.2H6
C、2H5OH
A.H3COOH
B.2H5OH
C.2H4
D.2H6
A.4H6S
B.4H4S
C.4H4S2
D.8H8S
A.O2
B.Pb3O4
C.PbO
D.Pb
A.NH3
B.NH4HCO3
C.NH3.H2O
D.NH4NO3
A.O
B.O2
C.O2
D.Mg(OH)2
A.H4
B.4H4S
C.4H6S
D.4H8S
A.该物质由碳、氢、氧三种元素组成
B.该物质的化学式为H2O2
C.该物质中氢、氧元素的质量比为1:8
D.该物质中氧元素的质量分数是5%