A chemist can _the oxygen from hydrogen in water. A. draw B. isolate C. associate
How can hydrogen be produced? A. Only from fossil fuels. B. By burning water. C. Through the electrolysis of water. D. By mixing different gases. 相关知识点: 试题来源: 解析 C。中文解析:文章中提到氢气可以通过水电解获得,使用太阳能和风能等可再生能源。A 选项文中提到要减少对化石燃料的依赖...
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17. A Chemist can _the oxygen from hydrogen in water.<br/> A、draw<br/> B、isolate<br/> C、associate<br/> D、split
requiredsomuchelectricitythatitmadelittlesensetoproducehydrogenthatway.Thesituationis changingfortworeasons.First,significantamountsofexcessrenewableelectricityhavebecome availableatgrid(输电网)scale;ratherthanstoringexcesselectricityinarraysofbatteries,the extraelectricitycanbeusedtodrivetheelectrolysisofwater,“storing”...
The mountains could stop the cold wind from the north and the river provided water for life. Most houses were also built facing south or west so that the rooms were able to get enough sunshine in winter and keep cool in summer. ③ In modern times, humans didn’t follow the laws of ...
The first factor will be where, and how quickly, costs fall and enable the necessary increase to large-scale production. For instance, the cost of the electrolysers needed to split water into hydrogen and oxygen remains high because levels of production are too low. These costs and slow prog...