百度试题 结果1 题目5. Ice is less dense than water, which is why it f loats. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
解析 A。冰浮在水面上是因为冰的密度比水小。选项 B“ice is more dense than water”冰比水密度大,不符合实际;选项 C“ice and water have the same density”冰和水密度相同,错误;选项 D“ice is heavier than water”冰比水重,也不对。反馈 收藏 ...
Water has some unique thermal properties. For most substances, density increases as temperature decreases. However, peak density of water occurs in water at around 4oC and decreases at temperatures both above and below this (see Figure 1). Because ice is less dense than the underlying water, i...
or if it is less dense. When you put some handful of stones into a bucket of water, all the stones will sink. The stones are denser than the water and hence can displace the water easily. If an object has to float, it has to displace the amount of water same as that of its weig...
Why is ice less dense than water? Ice is less dense than water because of the arrangement of the water molecules. As a liquid, water molecules pack together in a random arrangement. But as a solid, ice form as crystal, with each molecule arranged in a grid-like pattern. This crystal ac...
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. ...
What is the reason for ice being less dense than water? When water freezes, ice floats. Why? What happens to water at room temperature if you decrease the atmospheric pressure around it? How does the melting of sea ice affect climate?
a.is less dense than liquid water b.expands relative to liquid water c.has a more organized hydrogen bonding network than liquid water d.has more space between molecules than liquid water e.all of the answers are correct ...
One gigatonne is one billion tonnes. To get a picture of how large this is, imagine a block of ice one kilometre high by one kilometer wide by one kilometre deep (okay, the edges are actually 1055 metres long as ice is slightly less dense than water but you get the idea). Borrowing ...
phase. For this reason, water is one of the few substances that is actually lessdensein solid form than in the liquid state, dropping from 1,000 to 917 kilograms per cubic metre. It is the reason why ice floats rather than sinking, so that, during the winter, it develops as a sheet...