【题目】Water can be a liquid, a solid or a gas.When it is a solid, it may be as hard as rock.When it is a liquid, you can pour it out of a bottle. When it is a gas, you cannot see or pr feel it.Water can change from one form to another easily. When we freeze wat...
Antifreeze is a liquid(液体) that is added to water to keep it from freezing.When water freezes and turns to ice,it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car engines(发动机) to keep them cool while they run,and ...
PREPARATION OF POROUS THIN FILM FOR PROMOTING FOAMING OF CARBONATED DRINKS OR AVOIDING SUDDEN BOIL WHEN LIQUID BOILS, AND CONTAINER WITH POROUS THIN FILMPROBLEM TO BE SOLVED: To provide sustainable foaming of carbon dioxide which is supersatu rated carbonated drinks by fitting glass powder inside of...
A liquid absorbs heat when it changes into a gas and releases heat when it changes into a solid. When a liquid changes into a gas the phase change is...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Ou...
For a particular liquid, raising its temperature from 339 K to 365 K causes its vapor pressure to double. What is the enthalpy of vaporization of this liquid? Why does a compound with a high vapor pressure boil at a lower temperature than a compound with a lower vapor press...
When it is a liquid, you can pour it out of a bottl e. When it is a gas, you cannot s e e or pr feel it.Water can chang e from on e form to anoth er easily. When w e freez e water, it turns into ic e. When w e boil water, it turns into stea m.When ic e mel...
百度试题 结果1 题目When we boil water, it turns into steam. Steam is ___. A. a gas B. a liquid C. a solid D. nothing 相关知识点: 试题来源: 解析 A。水沸腾变成蒸汽,蒸汽是一种气体。反馈 收藏
Then add the liquid pectin, return the mixture to a full rolling boil and boil for 1 minute. Does pectin make you poop? As a soluble fiber with unique gelling properties, pectin aids digestion in many ways. Soluble fibers turn into gel in your digestive tract in the presence of water. ...
1. A method of separating metal powder from a slurry of liquid metal and metal powder and salt, comprising introducing the slurry into a first vessel operated in an inert and/or vacuum environment for separation of liquid metal from the metal powder and salt leaving principally salt and metal...
Why does a hot air balloon rise when it is heated? Why can't cold air hold much water vapor? Why does raising the temperature cause a liquid to boil? Why does decreasing the temperature of a liquid make it freeze? Why do liquids evaporate at different rates?