Lin: Grandpa, why is water called liquid (液体) gold? Grandpa: That’s 1 it’s very precious. Water resources are limited (有限的), you know. Lin: But there’s a lot of water in the sea. Grandpa: That’s 2 (salt) water. We can neither drink it nor take 3 shower with it. ...
Why Is Liquid Water Necessary for Life?Yesterday, NASA revealed the "strongest evidence yet that liquidwater flows intermittently on...Fredrikson, Annika
Although better telescopes later disproved Lowell’s idea, the search for liquid water on Mars remains a compelling scientific quest. Liquid water is essential for a planet to be considered potentially habitable. However, Mars’ harsh environment — with its low temperatures, thin atmosphere, and mi...
First we must protect the factory form pouring waste water into the riverSecond we should stop people from throwing litter into the river.many kinds of litter may pollute the envirenment.Finally we can tell the visitors how important the water is.After doing these things,I think water will ...
Why is it important that ice is less dense than water in biology? What is the reason for ice being less dense than water? Why does hydrogen bonding help ice cubes float? Why is ice the solid form of water? Please explain thoroughly why ice is less denser than liquid water. ...
解析 【答案】because ;water is precious 【核心词汇】liquid液体的 ;precious宝贵的 【翻译】为什么水说:“……像液体黄金。” 因为它认为水是宝贵的。 【解析】why引起的问句要用because来回答。故第一个空填because。再根据上一句”水像液体黄金“可知水很宝贵”故后三个空填“ water is precious”。
In a bottle of unopened cola, the CO2 dissolved in the liquid is in equilibrium with the CO2 gas above the liquid. The dissolved gas reacts with water molecules in the liquid to form carbonic acid, wh Explain why oxygen is gas but water is a liquid at room temperature. The water...
Water is preferred to any other liquid in the hot water bottles because the specific heat of water is high. It does not cool fast. Also water contains more amount of heat for a given mass and for a given rise in temperature as compared to other liquids .
Water is wet, in the sense of being a liquid which flows easily, because its viscosity is low, which is because its molecules are rather loosely joined together.
Why is heptane insoluble in water?Question:Why is heptane insoluble in water?Solubility:The tendency of a matter to get completely mix in a solvent to produce a homogenous mixture is named as solubility. This ability is based on "like dissolve like" principle. Hydrocarbons do not form solution...