考查固定搭配。句意:水可以分解成氢和氧。根据“into hydrogen and oxygen”可知,此处是指“分解”,应用固定搭配break down表示。故填down。结果一 题目 Water can be broken ___ into hydrogen and oxygen. (用适当的词填空) 答案 down相关推荐 1
百度试题 结果1 题目10. A chemist (chemical) can isolate oxygen from the hydrogen in water. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Since the time of Aristotle (384–322 BC) some scientists have claimed that hot water freezes faster than cold water. Aristotle writes inMeteorologica: "The fact that water has previously been warmed contributes to its freezing quickly. Hence many people, when they want to cool hot water ...
Drains are a great example of a part of the house that we don't think about until something goes wrong. Whether you're in a tiny apartment or a palatial house, they quietly do their job, dealing with used water and waste. But once they stop working, things can go awry, and quickly...
The given compound contains an oxygen atom in the carbonyl group and an -OH group. Hence, water molecules form hydrogen bonds with these two moieties,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
8. Water can be separated into hydrogen and oxygen.相关知识点: 试题来源: 解析 separated into 该句子已经是被动语态,无需修改。 原句 "Water can be separated into hydrogen and oxygen" 表达了水可以被分解成氢气和氧气,符合题目要求。 因此,答案为 "separated into"。
Water can be decomposed into hydrogen and oxygen by electrolysis. This reaction is a(n) ___. A. combination reaction B. decomposition reaction C. displacement reaction D. double displacement reaction 相关知识点: 试题来源: 解析 B。水通过电解分解为氢气和氧气,这是分解反应。A 选项是化合反应;C ...
Damp the soil lightly and cover the pot with a plastic wrap to encourage water retention. Place your growing lemon tree in an area with a temperature of 70 F (21 C). Once you notice the germination of seeds, remove the wrap and move the plant in bright light. ...
What will power your house in the future?According to scientists at the Massachusetts Institute of Technology (MIT) in the US,it might be artificial leaves.Natural leaves can change sunlight and water into energy.It is known as photosynthesis(光合作用).Now researchers have found a way to imitat...
Add a dechlorination agent to remove chlorine and chloramine. You can buy dechlorination agents at any pet store. Every dechlorination agent specifies the