2 A recent study showed how the temperature, which water freezes, can be changed using electric charges. 3A recent study showed how the temperature, at water freezes, can be changed using electric charges. A. t
·Hypothesis:Salt affects the time and temperature at which water freezes.· Materials:Plastic cups, measuring cup, water, salt, teaspoon, thermometer, marker, clock or watch, freezer· Steps:1. Put 100 ml of water in each cup. Use the thermometer to make sure that the water in both cups...
题干中water freezes是修饰temperature的一个非限制性定语从句;从句中freeze与先行词temperature之间要添加介词at,即freeze at the temperature.故选A. 点评 定语从句是用来修饰名词的形容词性从句,相当于一个形容词.连接定语从句的引导词分为关系代词和关系副词,关系代词在从句中要作主语或宾语;关系副词在从句中作状语...
Usually standard temperature is defined as 0 degrees Celsius or 273.15 Kelvin. This is the temperature at which pure water freezes under standard... Learn more about this topic: Avogadro's Law & Molar Volume | Overview, Formula & Units ...
The Mpemba effect is the name given to the assertion that it is quicker to cool water to a given temperature when the initial temperature is higher. This assertion seems counter-intuitive and yet references to the effect go back at least to the writings of Aristotle. Indeed, at first thought...
What do we call the temperature in which water freezes at 0° and boils to 100°?A、CelsiusB、CalculusC、Centimeter 相关知识点: 试题来源: 解析 A (1)本题考查实词的意义.解答此类题可用“代入法”,即将各选项意义代入原文,考察其与上下文语境是否相符.(2)本题考查虚词的意义用法.解答此类题,可用结构...
【题目】·Hypothesis Salt affects the time and temperature at which water freezes.·Materials'Plastic cups, measuring cup, water, salt, teaspoon, themometer, marker, clock o watch. freezer·Steps:1. Put 100 ml of water in each cup. Use the thermometer to make sure that the water in both...
A recent study showed how the temperature, ___ water freezes, can be changed using electric charges. [ ] A. at which B. for which C. in which D. with which的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的
ΔTf=Kf×m=5.12°C/m×0.862mol/kg≈4.41°C 6. Calculate the Freezing Point of the Solution: Tsolutionf=Tbenzenef−ΔTf=5.5°C−4.41°C≈1.09°C Final Answer:The temperature at which the solution freezes is approximately 1.09 °C. Show More ...
Erasto Mpemba noted that when his class was making ice cream, he placed a near-boiling blend of sugar and milk (which is mostly water) into a freezer, and it froze before other mixtures which had been cooled to room temperature before freezin...