What is the potential of hydrogen energy? A. To replace all traditional energy sources. B. To play an important role in the future energy system. C. To cause more environmental pollution. D. To be difficult to store and transport. 相关知识点: ...
Hydrogen energy is considered a promising new energy. What is hydrogen usually obtained from? A. Coal B. Oil C. Natural gas D. Water 相关知识点: 试题来源: 解析 D。解析:氢能被认为是一种有前途的新能源。氢通常从水中获得。A、B、C 选项都是传统化石能源,不是氢的来源。本题考查对氢能来源...
The Earth receives almost all of its energy from the Sun. Through a process called nuclear fusion, the hydrogen atoms inside the Sun combine together...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
technology, and applications of hydrogen energy. Hydrogen is the simplest chemical element, or type ofatom, and an abundance of hydrogen exists within the water on our planet. It is naturally renewed by the water cycle, and when used as fuel, it releases no harmful emissions. For these...
Hydrogencan be produced from a variety of resources, such as natural gas, nuclear power,biogasandrenewable powerlike solar and wind. The challenge is harnessing hydrogen as a gas on a large scale to fuel our homes and businesses. Why is hydrogen important as a future clean energy source?
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...
Currently, hydrogen demand is driven largely by the fertilizer and refining industries. Looking ahead, industries that rely heavily on fossil fuels, such as heavy industries and long-haul transport, stand to benefit the most from hydrogen energy in the short term. The steel industry, which ...
What is the electronegativity of hydrogen?Question:What is the electronegativity of hydrogen?Hydrogen:Hydrogen is the most common element in the known universe. It is represented by H and has the atomic number 1. It is classified as a reactive nonmetal and is a colorless gas.Answer...
powerenergyismatureinawiderangeoffields. Butthereareotherconsiderations.Forexample, solarfarmsaredense(密集),whilethelandbetweenwindturbinescanbeco-usedforagriculture. Tidalpowerisan environmentally-friendly energysource.Inadditiontobeingarenewable energy,itdoesnotgiveoffanyclimategasesand doesnottakeupalotofspace...
(ii) The first excitation energy of the hydrogen atom is 10.2 eV.Explain what is meant by this statement. 相关知识点: 试题来源: 解析 The energy required by the hydrogen atom for it to transit from the ground state to its first excited state is 10.2eV. ...