Hydrogen is a clean alternative to methane and is the most abundant chemical element, estimated to contribute 75% of the mass of the universe. Find out why hydrogen is important as a future clean energy source to fuel our homes and businesses.
What is the only by-product when we burn hydrogen for energy?A、oxygenB、waterC、electricityD、gasoline 相关知识点: 试题来源: 解析 B (1) 考查细节理解。根据第一段第一句Mario loved to have lots of friends at school.She showed off a lot可知,她常炫耀自己有很多朋友。故选C。 (2) 考查...
What is renewable hydrogen? Renewable hydrogen is hydrogen derived from water. It’s created using a process called electrolysis, wherein electricity from renewable sources is used to split the hydrogen molecules from the oxygen molecules in water. Because the electricity used here comes from renewabl...
In photosynthesis, what happens to the hydrogen ions (H+) after water is split in the light - reaction? A. They are released into the air B. They are combined with carbon dioxide in the dark - reaction C. They are used to generate ATP D. They are directly converted into glucose ...
What is the drinking water of hydrogen source 意思是：什么是氢源饮用水？hydrogen n. <化>氢；复数： hydrogens source n. 根源，本源； 源头，水源； 原因； 提供消息的人 vt. （从…）获得； 发起； 向…提供消息； 寻求（尤指供货）的来源 vi. 原料来源； 起源； 寻求来源； 寻求...
(H2O) into hydrogen (H2) and oxygen (O2) using electricity. This process, called water electrolysis, is a promising option for carbon-free hydrogen production since the electricity can be sourced from nuclear or renewable energy, such as wind and solar. Scientists and engineers are working to ...
Is regular water not good enough anymore? Trendy Hydrogen water claims more benefits than plain old H2O. /Source:TODAY ByMichelle Gant Whether it's bottled, canned, pouched or boxed, water is still just water ... right? Browse the beverage section of any supermarket these days and you’ll...
What are needed to get hydrogen from grass? A. A catalyst and palladium. B. Water and cellulose. C. Sunlight and a biopolymer. D. Sunlight and a catalyst. 相关知识点: 试题来源: 解析 D细节理解题。根据第二段The team,……that speeds up a chemical reaction without being used up.可知, ...
D.Beingexposedtowaterisbadforthesoldiers. ( )3.Whathavearchaeologistsrecentlydiscovered? A.Aplacewithoverahundredsoldiers. B.Awrittendescriptionofthesoldiers?truecolors. C.Aspecialliquidinthetombtopreservethesoldiers?colors. D.AnewtombforEmperorQin. ( )4.WhichstatementwouldRongBoprobablyagreewith? A.The...
What is one of the most important compounds of oxygen? A. Hydrogen (H₂) B. Water (H₂O) C. Carbon monoxide (CO) D. Nitrogen (N₂) 相关知识点: 试题来源: 解析 B。原因:文章中明确提到“One of the most important compounds of oxygen is water (H₂O).”。 反馈 收藏 ...