Which of the following is a chemical change? A. Melting ice B. Cutting paper C. Burning wood D. Folding clothes 相关知识点: 试题来源: 解析 C。解析:冰融化(Melting ice)、剪纸(Cutting paper)和叠衣服(Folding clothes)都是物理变化,燃烧木材(Burning wood)是化学变化。
Which is a chemical change? A. Melting ice B. Breaking a glass C. Burning wood D. Cutting paper 相关知识点: 试题来源: 解析 C。燃烧木材是化学变化。A 选项“融化冰”是物理变化;B 选项“打碎玻璃”是物理变化;D 选项“剪纸”是物理变化。化学变化会产生新物质,燃烧木材会产生新物质,所以选 C。
百度试题 结果1 题目Which of the following is an example of a chemical change? A. Melting ice B. Boiling water C. Burning wood D. Dissolving salt in water 相关知识点: 试题来源: 解析 C 反馈 收藏
Melting se a ice: everyone's fault Who should be b. for climate change?We all. should. Climate change is a global problem. There are millions of sufferers and billions of"causers." As long as you live on Earth, you give off greenhouse gases. These gases cause warming temperatures and...
Apart from the natural beauty of the area, my main interests were climate and geological history, as I was then working towards a doctoral degree in glacial and marine geology, which I earned in the late 1970s. Since then I have been in the Far North nearly every year. In the beginning...
Ocean-driven melting of floating ice-shelves in the Amundsen Sea is currently the main process controlling Antarctica’s contribution to sea-level rise. Using a regional ocean model, we present a comprehensive suite of future projections of ice-shelf melting in the Amundsen Sea. We find that rap...
Yes, the melting of ice results in a positive change in the entropy of the system. When ice melts, basically the water in solid state is changed to...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our...
What type of string is best for ice fishing? Pin The Science of Ice Fishing Why does everyone use salt to melt ice? Adding salt to ice will lower the ice’s melting point. Salt causes a physical change by altering the properties and temperature of the ice cube. However, if the surround...
(Fig.2). This implies that the thermocline on the continental shelf was deeper than the draft of Wilkins and Abbot ice shelves, but shallower than the drafts of George VI, Stange and Venable ice shelves allowing the warmer ocean water to facilitate basal melting. However, a clear shift in ...
Ice activities are great for learning about reversible change, temperature, and properties of water. Melting ice science is also great for practicing fine motor skills with spray bottles, squirt bottles, and eye droppers or basters! Ice Cream In A Bag ...