关于H2→H2O,CO→CO2,Mg→MgO三种物质的转化过程,下列说法正确的是()A、都能通过化合反应实现B、都能通过置换反应实现C、都能通过与单质反应实现D、变化前后元素化合价都发生了改变
关于H2→H2O,CO→CO2,Mg→MgO三种物质的转化过程,下列说法正确的是()
- A、都能通过化合反应实现
- B、都能通过置换反应实现
- C、都能通过与单质反应实现
- D、变化前后元素化合价都发生了改变
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