![subject](/tpl/images/cats/biologiya.png)
Once ice forms on a lake in winter, the water underneath the ice remains about 4°c, even if the air temperature just above the ice is far below freezing. what property of water keep the water below the ice from freezing? a when covalent bonds form between the water molecules in ice, they give off heat. b each water molecule stores heat in its covalent bonds during the summer and releases it slowly over the winter. c the unstable hydrogen bonds between the water molecules break and push the molecules around, which keeps the water from freezing. d the hydrogen bonds that form in the ice create a lattice structure, and the resulting extra space enables the ice to act as insulation.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 22:00
Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 05:30
Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 12:30
When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles
Answers: 1
You know the right answer?
Once ice forms on a lake in winter, the water underneath the ice remains about 4°c, even if the air...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 10.09.2019 20:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.09.2019 20:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.09.2019 20:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 10.09.2019 20:30
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 10.09.2019 20:30
![question](/tpl/images/cats/istoriya.png)